Lua date to string 20. ]] Concatenation of Strings. log(date. The basic loop would be: for i = 1, #str do local c = str:sub(i,i) -- do something with c end Jun 12, 2015 · You are looking for string. 格林威治时间GMT时间是我们平时使用的时间，世界各地的时间不一样是因为时区不一样，国内基本统一使用的北京时间， 时区是东八区。 May 27, 2021 · datetime string convert to timestamp Lua 5. Concatenation with . 20181129091404 Apr 19, 2009 · This skin uses Inline Lua section variables to repeatedly use a function in the Lua code to "parse" formatted date/time strings into the separate elements, and turn them into UTC timestamps. All other items will silently be discarded. date返回字符串. Jun 10, 2012 · Return CPU time since Lua started in seconds. Time addition and subtraction. Alternatives to string. tostring() "10" Syntax This function will return the number as a string value. If the value is a number, then lua_tolstring also changes the actual value in the stack to a string. If no time is supplied defaults to the current time. In Lua, we use os. Jun 18, 2016 · What our Lua code does at a high level 1) Get the current system date and time as a formatted string. format function. The shift is unapplied by using os. date() -- 11/29/18 09:14:04 Into the format of YYYYMMDDHHMMSS, so in this example, I would want to return. Mar 13, 2024 · Given a format string, it returns the formatted date. This one is pretty obvious. getDay Returns the day of the week of `this` Date (0-6 range) where `0` is Sunday. 例如： t1 = os. Apr 9, 2014 · It turns out that storing binary data is a Lua string is non-trivial. date()) -- Fri Dec 6 16:06:43 2013 Jun 27, 2019 · 讲解从小白到Java开发工程师的技能，内容包括Java基础与高级、JavaWeb、Mysql数据库、Redis数据库、MyBatis、MyBatisPlus、Maven基础与高级、Spring框架、SpringCloud等，也会更新面试题，专栏关注超50人，活动价39. Returns a string with length equal to the number of arguments, in which each character has the internal numerical code equal to its corresponding argument. Since Lua does not convert tables to string format automatically, this could lead to unexpected outputs. 1, you can iterate of the characters of a string this in a couple of ways. date接受两个参数：. Lua module (not binary). Lua has a limit on string length, which could cause issues when processing extensive data collections. A character class is an item in a pattern that can match any character in a specific set. Feb 23, 2016 · 曾几何时，在lua里面对时间进行操作总是充满了辛酸和不堪，最终下定决心使用一个优雅的方式实现对日期的处理，在大多数情况下对日期时间的处理主要是： 根据已知时间和偏移量以及时间单位计算出一个新的时间 设计思路： 1. time functions. Aug 15, 2022 · @EgorSkriptunoff Thanks for comment, can you help me with this how can i format this 239657|20220815T082447. This makes displaying dates and time easy and quick. You specify a capture by writing the parts of the pattern that you want to capture between parentheses. ) Dec 6, 2013 · I have a question regarding date formatting in Lua (Luajit). No global table date will be created. Apr 5, 2025 · The `tostring` function in Lua is a built-in function designed to convert various data types into their string representations. date函数定义. dateは日付を変換する標準的な LuaDate v2 Lua Date and Time module for Lua 5. Sep 28, 2021 · os. Sep 13, 2017 · If format is not “*t”, then date returns the date as a string, formatted according to the same rules as the C function strftime. date Feb 8, 2017 · How can I convert this string into a timestamp in Lua? 2017-02-04T15:12:02. To create a date in Lua you can use the function os. If len is not NULL, it sets *len with the string length. sub() method if you know the index you wish to split the string at, or use the string. Wednesday) %b - Abbreviated month Apr 18, 2020 · lua 的 os. rep("a", 2^20). Lua的时间处理函数主要有：time和date两个。time函数主要是返回一个时间戳，用于描述当前时间距离1970-01-01的秒数；date和time相对应，用于将一个时间戳格式化为可方便使用的时间对象table。 Jan 4, 2024 · The plugin uses Lua expressions; I found the date and time functions described '''converts a 13-digit timestamp string into a date string in the desired format Common Mistakes and Solutions Common Issues with `print` A common pitfall when using `print` is attempting to print mutable objects like tables directly. Lua TZ cannot process dates preceding Julian day 0. 10 Remove leading zeroes in Lua string. The capture mechanism allows a pattern to yank parts of the subject string that match parts of the pattern, for further use. 原型：os. clock() 11056. Lua: Changing a Date table to string or some other format. date and os. The function os. The fundamental characteristics of strings in Lua are: Sep 22, 2012 · I thought there could be a standard library function in Lua for validating if the date is a valid one from the string representation. newproxy (boolean or proxy) - Creates a userdata with a sharable metatable. 0? I need to mimic the exact behaviour of Lua's tostring in C, without using the Lua C API since, in this case, I'm not using a lua_State. Dec 22, 2016 · Actually, no, wait, I screwed up. Since the Date and Time object is returned in Unix time, we have to format it into a local time format. gmatch() from Lua 5. Currently, only the Date/Time instances support undump. string. But it is possible when taking care with 3 sequences. (This change confuses lua_next when lua_tolstring is applied to keys during a table traversal. Is there a standard way of getting a time duration string that causes 0 seconds to produce a clock representing a total of zero seconds? Aug 27, 2020 · 取得时间的字符串(string)格式. Dream Report - 4 - 2. 3 Reference Manual The reference manual is the official definition of the Lua language. A consequence of this is that there are many ways of working with dates in Lua, and the best one to use depends on your situation. > = os. date()` function to generate and format date strings according to your requirements. hour, parsedDate. 3. Lua TZ uses the tz database (also known as zoneinfo database) which must be installed on the host. Mar 13, 2024 · Lua: Getting the current date How to: Lua provides the os. Lua doesn’t have built-in date comparison functions, but we can use the os. date(format,time) 实际上与取得table格式的时间一样，同样是使用os. Lua provides the os. Array is an ordered arrangement of objects whereas string is a continous sequence of characters. time()); for i, v in pairs(t) do print(i, v); end. 4. If the time argument is present, this is the time to be formatted (see the os. If format starts with '!', then the date is formatted in Coordinated Universal Time. date:. 2 support. 4 Reference Manual: os. Date, time and strings user variables are passed as strings with no modification. can i get it as 2022-08-08 08:24:47. time print Date Formatting Functions: wiki: The following code provides date formatting functions which are not available in the string. time (dateString)) print ("Parsed Date Mar 13, 2024 · Lua: Parsing a date from a string How to: Lua does not have built-in support for date and time manipulation beyond the limited functionality provided by the os. Table have ASCI value, and the same result I get in print- value 49(dec) will print as 49, not ASCI "1". date 的用法与 string. 3 introduced string. By mastering the `tostring()` function, leveraging `string. 55 . format("%d… In conclusion, mastering the `lua os. Date and Time string parsing. 0 original by Feb 16, 2015 · I have a variable with a date table that looks like this * table: [day] * number: 15 [year] * number: 2015 [month] * number: 2 How do I get the days between the current date and the date Nov 16, 2014 · Basically I want to take the current date and time, then add 1 month to that date, and then save that new date to my MySQL table in a format that can I can later compare to the current day of that time. 5 Date formatting in Lua Aug 3, 2018 · Lua: Changing a Date table to string or some other format. 4) Convert the components of that formatted string into table fields that we will use to get a timestamp from os. We’ll explore how to create, concatenate, and format strings, dive into essential string functions, and uncover practical examples that show how to In Lua, you can convert a number to a string using the tostring() function. Dec 31, 2020 · Lua. Here the value is being split by either ":" or ". While the value "2" in variable a is converted into a number type. 503-04:00 Nov 29, 2018 · I was wondering how to go around getting a date string in the following format: date = os. Historically, Lua lacked built-in string interpolation, unlike some other languages (e. date("*t", os. 0. Table start's from 0, not 1 so table. Jan 28, 2025 · Understanding Strings in Lua What are Strings? In Lua, strings are sequences of characters that can include letters, numbers, and symbols. format("elapsed time : %. The os. ##Features: Date and Time string parsing. date formats according to the C strftime function, hence Lua’s datetime formatting options mirroring those in C and other languages. Generates a string from the DateTime value interpreted as Universal Coordinated Time (UTC) and a format string. For more details, see the String Format section in this data type's description. time (dateString)) print ("Parsed Date: ", parsedDate. Luaでは、os. date("%Y %m %d", time) It just returns nil, a Jan 20, 2017 · Lua: Changing a Date table to string or some other format. char: string. gmatch which is splitting by regex in Lua. * Support ISO 8601 Dates. Turns out os. was the go-to way. Time Formatting in Lua. 由于os. This prevents easy usage of the return of os. * Time addition and subtraction. 275Z to date and time in lua? here after the symbol | is the date and time. There is no library method available to convert an array to string but we can use concatenate operator to concatenate entries of an array to get a string from an array. * Formats Date and Time like strftime. Features: * Date and Time string parsing. time）。否则，date 会使用当前时间来格式化。 如果 format 参数由 '!' But in some systems, notably Windows, binary files must be opened with a special flag. Fun fact: Lua’s time-related functions use the epoch as reference—the number of seconds since Jan 1, 1970. The date function, despite its name, is a kind of a reverse of the time function: It converts a number representing the date and time back to some higher-level representation. date include using external libraries or even writing a custom parser. , Ruby, Python). parse() function is pretty smart, but it can’t predict everything, to address this we allow you to create custom date formats. date() is equivalent to os. When indexing a string, the first character has position 1. Getting the current date. e if number == (int) number) or is it always going to output a real (as string) like 10. date() - Get Current Date and Time. Date functions. time() - x > timestamp in UTC, but TimeZone - portably returns a timezone string in the form +hhmm or -hhmm. The string. The Lua idiom for this case is something like this: Mar 13, 2024 · Lua’s string. sec Lua Strings - Explore the fundamentals of strings in Lua, including string manipulation, functions, and examples to enhance your programming skills. g. When called without arguments, date returns a reasonable date and time representation that depends on the host system and on the current locale (that is, os. How to print out date and time in this format in Lua? 1. Using os. t = os. Aug 28, 2024 · To parse a date and time string in Lua, you can use the os. Binary data in Lua are handled similarly to text. 2) Get the current UTC date and time as a formatted string. expiry_date ="2016-06-03 07:34:19" //(GIVEN DATE + 10 DAYS) But instead of that is print like below. date to format dates into strings. Otherwise, date formats the current time. 2 String Manipulation. * Lua module (not binary). - Pure Lua date and time module for Lua 5. ". So far, this is what I have: -- Example datetime string 2011-10-25T00:29:55. Lua Date and Time module for Lua 5. When using user variables in Lua, keep in mind the following: variables are always stored as a string in the Domoticz database, regardless of their type. – ZippyMind Feb 8, 2019 · Split your string with lua pattern and use os. For example, Feb 29, 2010 is a valid date or not. time to create the seconds (lua date and time). tointeger() It can also be converted into numbers by using this method. Apr 5, 2024 · Alternatives to os. If you have no particular need to use a format, then one candidate is (%x): os. You can create a string with 1M bytes (for tests, for instance) with string. getMonth Returns the month of `this` Date (0-11 range). gmatch() or string. time() function to convert dates to a numerical format (epoch time) and then compare them. Make sure Lua can find the source file date. The format string should contain tokens, which will replace to certain date/time values described by the DateTime object. Due to the existence of format strings, the readability of the resulting long strings is greatly improved. Mar 16, 2016 · It is going to convert to an int (as string) if the number is round (i. 3 Lua 24-hour format of an hour without leading zeros. date-- convert system timestamp to table or human-readable string os. lua. lua file, which includes the tonumber() and tostring() methods, which can realize the conversion of numbers and strings. 3 – Captures. Its first parameter is a format string, describing the representation we want. You can utilize the `os. ffffff where the number of repetitions of the same character specifies the number of characters used by a given (eventually) normalized field: Y for year, M for month, D for day (T is a separator like -, : and . 借助于lua提供的os. Implementation-wise, os. gmatch() if you will parse the string to find the location to split the string at. To handle such binary files, you must use io. lua module contains a fuzzy date/time parser which parses just about any date. What I would like to wind up with is ( Lua TZ supports Lua 5. sub() methods. Table keys must be numbers or strings, table values must be numbers, strings, tables or values that implement the "__undump" metamethod. After this optional character, if format is the string "*t", then date returns a table with the following fields: year, month (1–12), day (1–31), hour (0–23), min (0–59), sec (0–61, due to leap seconds), wday (weekday, 1–7, Sunday is 1), yday (day of the Oct 10, 2024 · テーブルを使った日付と時間の処理-- 現在の日付と時間をまとめたテーブルを取得datetable = os. G Jul 4, 2013 · I expected os. Use the string. 这篇博客介绍了Lua中如何使用os. This library provides generic functions for string manipulation, such as finding and extracting substrings. Local time support. The second is the numeric date-time; it defaults to the current date and time. Lua’s built-in date and time library allows developers to format dates effortlessly. date ([format [, time]]) 解释：返回一个按format格式化日期、时间的字串或表。 lua源码中os. Date formatting in Lua. As a Roblox developer it is currently too hard to format strings so they have date and time information in them. 10. 例如: loadstring("Lua code") - Parse the string as Lua code and return it as a function reference. To mitigate this, consider chunking your data or creating summarized representations when Oct 8, 2023 · String formatting. 返回包含了日期和时间的字符串或表，其按照所给字符串参数 format 来格式化的。 如果传入了参数 time ，则使用这个时间来格式化（关于该值的描述请参见os. 866Z. 1 Reference Manual: os. 1, Lua 5. If len is not NULL, it also sets *len with the string length. In vanilla Lua, there is an option in os. format()`, and employing custom string conversion functions, you'll be better equipped to handle a variety of scenarios in your Lua programming journey. The function can be used without arguments to get a formatted string or with format specifiers to customize the output. Feb 11, 2015 · print(string. strfind (str, substr, [init, [end]]) Receives two string arguments, and returns a number. getDate Returns the day of `this` Date (1-31 range). It seems as if this process is called serialization, and is discussed in the below url, yet I am having a difficult time understanding the code and was hoping someone here had a simple table Returns the string representation of a date, which follows the format YYYY-MM-DDThh:mm:ss. date` function opens up a plethora of possibilities for date manipulation and formatting in your Lua programs. It's also cpu time which means that my 'solution' is inaccurate to a range of, on average 0-600milliseconds. min, parsedDate. Strings are sequences of characters used to store and manipulate text, and mastering them is key to handling data and building powerful programs. toString() I get the following error: attempt to index upvalue 'microse Oct 21, 2022 · From Lua 5. A string in Lua may contain any bytes and almost all functions in the libraries can handle arbitrary bytes. 9元，七天后会恢复到原价99元 For longer texts or multi-line strings, Lua supports a syntax using double square brackets `[[ ]]`. 989 os. I'm having trouble with the match pattern. This function is critical for ensuring that different types can be easily displayed, logged, or manipulated as strings in your Lua code. dateは日付を変換する標準的な Jan 17, 2014 · I am developing a plugin written in Lua, and I need a way to calculate Unix time or at least a way to compare 2 date strings. Oct 15, 2016 · I am wanting to convert a 2d lua table into a string, then after converting it to a string convert it back into a table using that newly created string. date():sub(9) 12:30:39 This works on my PC ;). date('!*t', time) which works on UTC time. How to convert SQL date to a string in Lua? 5. Lua TZ has been built and tested on Ubuntu Linux (64-bit) and MacOSX. Lua 5. 2, Lua 5. By understanding how to retrieve the current time, utilize various formatting options, and perform time calculations, you can enhance your applications trivially. toString () Jun 3, 2016 · Now whenever I am try to print expiry date it must need to print . format for a cleaner approach, similar to C’s printf. Apr 25, 2017 · I calculated the difference in seconds between UTC time and local time. Aug 28, 2024 · This will output the current date and time in the format "YYYY-MM-DD HH:MM:SS". If you need any further help, I'll write a code snippet. date参数，不同的是第一个参数 如果第一个参数不是"*t" os. Time span calculation. To Load the module call local date = require"date" in your script. date allows you to format a date and time according to a certain pattern and returns it as a string. rep(s, n) returns the string s repeated n times. sub include pattern matching with string. format() function to generate a string with a specific format, the first argument to the function is the format, followed by various data for each code in the corresponding format. Apr 22, 2018 · I've seen lot's of answers to convert strings to integers, but how can I convert integers to strings? When I try microseconds. Feb 1, 2013 · [quote=“rob,post:2,topic:309743”] basically you have to parse the string into its component numbers, but its really not that hard. To do this, we use an Expression object, and use a Lua script to format it as needed. For a complete introduction to Lua programming, see the book Programming in Lua. contact miss first character I not write it also, but table in real is 16bit where first 8bit is empty. The dateparse. date ([format [, time]]) Returns a string or a table containing date and time, formatted according to the given string format. Likewise, tonumber() can convert any data type into a number type. date的注释如下：--- --- Returns a string or a table containing date and time, formatted according --- to the given string `format`. If you are splitting a string in Lua, you should try the string. sub and pattern matching are based on C functions due to Lua’s C roots. Sep 22, 2012 · I thought there could be a standard library function in Lua for validating if the date is a valid one from the string representation. time function for a description of this value). about; news; get started; download; documentation; community; site map; português; designed and developed at. Some functions in the string library are quite simple: string. 000Z) in Lua? I'm specifically trying to do it by using the HttpLuaModule in Nginx. time()函数将字符串转换回时间戳。 详细解析了转换过程中涉及的参数和方法，包括对日期和时间元素的处理，以及转换过程的关键步骤。 Apr 1, 2025 · Working with Date and Time in Lua. Long-format-string-literals cannot have an embedded closing-long-bracket (]], ]=], etc). time()以秒为单位返回当前时间，因此您可以简单地添加您的偏移量（8），乘以每分钟的秒数（60），再乘以每秒钟的分钟数（60）。 The full power to manipulate strings in Lua comes from its string library. tab = os. Jan 2, 2025 · The returned string can be given to the lua compiler which will compile it back into the same table. The Lua value must be a string or a number; otherwise, the function returns NULL. . len(s) returns the length of a string s. * Local time support. date function can also be used to convert date strings into date tables, which are Lua tables containing fields such as year, month, day, hour, minute, second, and more. 1. date function to get the current date and time. toUTCString()) // "Fri, 06 Dec 2013 14:05:28 GMT" Unfortunately in Lua I cannot find possibility to format date this way: print(os. 2. The variables are passed in the uservariables array to Lua, at that point they may be converted. Jan 2, 2025 · Returns a string or a table containing date and time, formatted according to the given string format. date([format [, time]]) Return formatted date string, or table of time information. See Section 7. Apr 2, 2019 · os. Mar 13, 2024 · Deep Dive. day, parsedDate. Wed) %A - Full weekday name (eg. However, these can be leveraged for basic parsing, and for more complex requirements, the luadate library, an external library, can be utilized. next (table, index) - Returns the next key, value pair of the table, allowing you to walk over the table. match -- regex-like string matching and subgroup extraction Aug 22, 2017 · 文章浏览阅读2w次，点赞3次，收藏10次。本文介绍Lua语言中处理日期和时间的方法，重点讲解了time和date函数的使用技巧，并提供了实用的代码示例。 May 7, 2025 · For simply printing the time - extract what you want (the time) from the full date stamp string: > os. I need to get UTC string, for example, like I would do it in JavaScript: var date = new Date() console. Oct 27, 2011 · I'm trying to parse a full ISO8601 datetime from JSON data in Lua. Converting a date into a string. Lua provides several built-in functions for performing operations on dates and times. Returns the seconds of `this` Date (0-59 range). 2f\n", os. date()− This function is used to get formatted date, current date. 5. time()− This function is used to get a particular timestamp as per provided arguments Aug 16, 2018 · 介绍lua的日期函数常用方法及我的一个踩坑。 时间戳转日期 日期转时间戳 当前时间戳 格式占位符 转成年月日接口 当然，如果你只需要拿天数进行比较，可以使用 踩坑日志 不建议采用以下方式计算日期 比如这两个零点日期，通过上述接口计算的dd是非常接近的！ An API returns a timestamp as UNIX timestamp at UTC and I would like to know if this timestamp was more than x seconds ago. Lua provides following functions to do all operations on date and time like getting formatted dates, date manipulations, getting current time, getting time differences etc. sub is part of its richer string library, making string manipulation a breeze. You can make patterns more useful with character classes. Returns a string with the date and time formatted according to the format given. Understanding how to convert Lua numbers to strings is a fundamental skill that can improve your programming efficiency and clarity. There may be a different date stamp string in your OS. month, parsedDate. Parsing Dates and Times # To parse a date and time string in Lua, you can use the os. copy local now = os. date("*t")-- 年（4桁）print(string. date() function with the ! modifier. If format is not "*t", then date returns the date as a string, formatted according to the same rules as the ISO C function strftime. time -- get system timestamp from system clock or datetime table string. date和os. Note that numerical codes are not necessarily portable across platforms. 6 Run Fork Copy link Download Share on Facebook Share on Twitter Share on Reddit Embed on website Feb 8, 2019 · Split your string with lua pattern and use os. date. Feb 3, 2024 · Lua: 从字符串解析日期 如何操作： Lua没有内置支持日期和时间操作，超出了os. clock() - x)); 输出： 0 elapsed time : 2. If you wanted to display the current 20. 3, and Lua 5. year, parsedDate. date ([format [, time]]) . 1 NPM support; v2. time. 2 – Patterns. That makes successive concatenations to a single string have very poor performance. ##Changes: v2. Long-format-string-literals cannot end with something like ]== which would match the chosen closing-long Jan 3, 2020 · 在Lua中，tostring函数可以将任何数据类型转化为字符串类型[^2]。当一个值被传递给tostring函数时，它会首先检查该值是否有元表。如果有，Lua将寻找该元表的__tostring字段，并且如果该字段是一个有效的函数，则Lua Conclusion. date() function is used to get the Dec 25, 2018 · os. Help would be appreciated. LuaDate is a Lua module for date and time calculation and retrieval using the Gregorian Date system. Example using string. getFullYear Returns the full year of `this` Date (4-digits). Since strings in Lua are immutable, each concatenation creates a new string object and copies the data from the source strings to it. Formatting Dates and Times Basic Date Formatting. date 跟 shell的 date 功能一样强大。 关于的时间的概念梳理： 1. 格林威治时间GMT时间是我们平时使用的时间，世界各地的时间不一样是因为时区不一样，国内基本统一使用的北京时间， 时区是东八区。 However, there is a caveat to be aware of. In the example, the value 3 in variable b is converted into a string type. How to print out date and time in this format in Lua? 0. I highly doubt that this is of any use to you; theoretically you could decompile it to get back a "Lua" representation of what the function does, but it would hardly be recognizable or readable. LuaDate allows you to take advantage of the following features: Date and Time string Parsing. 1 featuring date and time string parsing, time addition and subtraction, time span calculation, support for ISO 8601 Dates, local time support, and strftime-like formatting. date ("*t", os. The function I can use only returns date string in the following format "1/17/2014 6:50 PM" LuaDate v2 Lua Date and Time module for Lua 5. expiry_date = "2016-06-13 12:00:00"// (Wrong Date) I know in Lua have must functionality to print date in proper way as I needed but can't get from Google. The format string can consist of "*t" on its own, or literal strings, mixed with the following directives: %a - Abbreviated weekday name (eg. Global 'date' will no longer be set. It does not handle timezones or Daylight Saving Time and so the outputs refers to Universal Coordinated Time (UTC). date(“%c”)). dump function to obtain the bytecode of a function. ftime 完全相同. time(); for Jul 1, 2023 · Two functions, time and date, do all date and time queries in Lua. Limitations and Workarounds. 3 contains the global. Omit the format, and it returns a table with date components. 输出： hour 14 min 58 wday 2 day 10 month 8 year 2009 sec 18 yday 222 isdst false . x. * Time span calculation. Aug 7, 2022 · Hi Skully, is small problem. My situation is this: The wireshark data consists of hex numbers such as 4321 8765 CBA9. In conclusion, mastering the `lua os. Nov 24, 2024 · Converting Strings to Date Tables. time函数提供的有限功能。然而，这些功能可以被用于基本解析，对于更复杂的需求，可以使用外部库luadate。 Mar 9, 2022 · I have a unix timestamp coming from my mysql database, and I wanna convert it to a date, but when I try to use local time = 1647385200000 os. 0/5. math. os. This is how you can create a date in Lua: tostring() can convert any data type into a string type. clock() returns centiseconds sometimes if the millisecond number ends in a 0 (1/100th not 1/1000th) as you asked. open, with the letter `b´ in the mode string. Lua makes it easy to concatenate, or combine, strings using the Sep 25, 2020 · Lua: Changing a Date table to string or some other format. v2. Jun 23, 2020 · log filename可以根据自己的需求自定义文件输出的名字，如日期、时间、终端、连接方式等等。 printable output with timestamps：每一行日志都带上时间戳。 6. char (···) Receives zero or more integers. Jun 25, 2019 · [Recommended use] The Lua script in version 5. Lua极简入门(十三)——日期时间 时间. Nov 21, 2013 · How would you convert a timestamp to an ISO 8601 format (such as 2009-01-28T21:49:59. date("%x", date) -- 09/16/1998 (for example) The string that gives you depends on the computer's locale. Lua provides string. Here is a function I use for it: Returns the seconds of `this` Date (0-59 range). date()函数将时间戳转换为格式化的字符串，以及如何利用os. Mar 5, 2012 · For example, if your app interacts with another service that expects a certain date format, it makes sense to use that format in all your app. Feb 27, 2025 · 019;ll guide you through working with strings in Lua – a fundamental aspect of Lua programming. local multilineString = [[ This is a multiline string in Lua. Support ISO 8601 Dates. time Apr 5, 2024 · Alternatives to os. Then there is a counter in place to match the index for the resulting table. For your example: Nov 28, 2016 · I am new to Lua, and I am building a custom dissector for Wireshark. date ( [format [, time]] ) time参数是以秒为单位的，可用于偏移返回值。. Lua - Using os. difftime (t2, t1) 功能：返回t1到t2相差的秒数. This is particularly useful for writing documentation or strings that span multiple lines. Note, the ability to re-use a single function multiple times in your skin is the power of Lua in a nutshell! May 17, 2017 · Unlike other languages, Lua doesn't have a DateTime type; dates and times are represented in Lua through strings, numbers, and tables of strings and numbers. Jan 30, 2019 · In lua 5. Nov 2, 2021 · Here is a not bad way using string. They are used for various purposes, such as storing textual data, performing manipulations, and much more. time实现&# Converts the Lua value at the given index to a C string. date that allows formatting of strings with time information using options similiar to strftime in C. Formats Date and Time like strftime. Here's a barebones Time class that applies the shift to store UTC time in from_lua_time. As expected, this works fine with os. Mar 26, 2016 · Here is some Lua code adapted from some C code found by Google. – ZippyMind Apr 18, 2020 · lua 的 os. 3) Get an ISO-8601 formatted date and time string from the skin. 275. For example: Apr 15, 2017 · @SuperJedi224 You'd have to create a C wrapper, something like int getHighResTime(lua_State *L) { /* push the time onto the lua stack */ return 1; }, add code to register the C fns with Lua, and then compile that with the Lua C API as a shared library. Jun 11, 2019 · Lua Date Format and Comparison. 2 for some examples on string manipulation in Lua. Here's an example: local dateString = "2022-01-01 12:00:00" local parsedDate = os. date("%X", 0) to produce "00:00:00" but it is returning "20:00:00" as well as a date value of "12/31/69" (I don't need a calendar date though). Jul 26, 2022 · Lua also provides the string. You won’t find a vast standard Functions that involve deep recursion and manipulate strings frequently can slow down considerably with large datasets. match, which is more powerful but can be overkill for simple tasks. 1 Lua 5. These functions allow you to get the current date, manipulate dates, format them, measure execution time, and compute time differences. odjn ueq hyrdceg zboj apnop ajkwg xfauva scnjjjd hrqc mvao