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Does Python's time.time() return a timestamp in UTC? [duplicate]

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问题 This question already has answers here : Does Python's time.time() return the local or UTC timestamp? (7 answers) Closed 3 years ago . I need to generate a UNIX timestamp in UTC time so I'm using time.time() to produce it. Do I need to do anything else or is the timestamp automatically in UTC? 回答1: Technically, time.time() doesn't specify, and practically, at least in CPython, it returns a timestamp in whatever format is used by the underlying standard C library's time function. The C

mysql 中时间和日期函数

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原文链接: 　　mysql 中时间和日期函数 - redfox - 博客园　　http://www.cnblogs.com/redfox241/archive/2009/07/23/1529092.html ------------------------------------------------------------------------------------------------------------------------------------------------------ 一、MySQL 获得当前日期时间函数 1.1 获得当前日期+时间（date + time）函数：now() mysql> select now(); +---------------------+ | now() | +---------------------+ | 2008-08-08 22:20:46 | +---------------------+ 除了 now() 函数能获得当前的日期时间外，MySQL 中还有下面的函数： current_timestamp() ,current_timestamp ,localtime() ,localtime ,localtimestamp -- (v4.0.6) ,localtimestamp() -- (v4.0.6)

How to handle Day Light Saving in Oracle database

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问题 In one of the Oracle database server it is showing "+01:00" when I fire the "Select dbtimezone from dual" does that mean in summer the clock will shift one hour ahead ?. In another server it is showing "+00:00" does that mean the database server setting is GMT ? but I am using the sysdate in oracle pl/sql. Client is saying the Aix server is on DST so would that mean the DB server will adopt the AIX server setting after clock change ? How to fix this problem. 回答1: Answer is: It depends. In

How to handle Day Light Saving in Oracle database

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How to handle Day Light Saving in Oracle database

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How to get client timezone in utc format like (UTC+05:00) in php or javascript

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问题 I want to get timezone of visitors of my application in UTC format like (UTC+05:00) in php or javascript. I have already tried this but it does not help me out it returns the result as Asia/Karachi: $time ="<script>document.write(Intl.DateTimeFormat().resolvedOptions().timeZone);</script>"; echo $time; Result: Asia/Karachi I want to get result in UTC format like (UTC+05:00). How can I achieve this? 回答1: Here is a javascript solution : let date = new Date(); console.log('UTC' + (-date

UTC String to Date and UTC Time Calculations

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问题 I have a string, that I know will be reference to an UTC timestamp @"2016-01-20T17:00:00" now when converting it to an actual NSDate it returns this when printed out: NSLog("%@", [TimeHelper stringToDateInUtc:@"2016-01-20T17:00:00"]); -> 2016-01-20 18:00:00 +0000 Same thing with a UTC date: NSLog(@"Time in UTC Now: %@", [TimeHelper getNowUtcAsDate]); I also have this method for getting the current time in UTC and convert the string to UTC: + (NSDate*) stringToDateInUtc:(NSString*)str {

momentJS: Getting wrong timestamp from date in a different timezone

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问题 There is one time input i.e. start_time I am trying to get timestamp in milliseconds for these inputs let start_time = "17:05:00"; var start_date_moment = moment(start_time, "HH:mm:ss"); console.log(start_timestamp); output is -> moment("2019-04-24T17:05:00.000") This output remains same on server and local But when I am trying to get unix timestamp in milliseconds in the same way var start_timestamp = moment(start_time, "HH:mm:ss").valueOf(); On server at different timezone console.log(start

how to handle DST and timezones in JavaScript

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问题 What is the best approach for dealing with DST values when your web service accepts requests from different timezones than that of your server? My webservice accepts date strings using the ISO8601 standard (2012-02-21T05:00:00.000-05:00) I want to account for DST but don't want the overhead of maintaining or connecting to a database to get the DST for each request which comes in from a different timezone to my server. One approach im considering is using the servers default DST settings and

Tightest Byte Representation of YYYYMMDDHHMMSS?

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问题 I need to pack string with a UTC datetime, using the smallest number of bytes/characters. I only need precision to the second. Using .NET 4.0, what would be the most space-efficient way to pack this down? Ticks doesn't seem all that small. All ideas appreciated. Thanks. EDIT: Thanks to Joel Coehoorn, the pack/unpack move is the best. Thanks! Here is some proof: DateTimeOffset nowStamp = DateTimeOffset.UtcNow; Console.WriteLine( nowStamp.ToString() ); // 9/9/2011 2:17:17 PM +00:00 Console