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Nov 21, 2008 · Getting current time in UTC/GMT is a simple one-liner…. Instant instant = Instant.now(); That Instant class is the basic building block in java.time, representing a moment on the timeline in UTC with a resolution of nanoseconds. In Java 8, the current moment is captured with only up to milliseconds resolution.
Nov 5, 2013 · My feel is that the operating system abstracts these things and Java just asks the OS. So if System.currentTimeMillis () does not return a UTC value, it's because the OS is not configured correctly. So for most intents and purposes, yes, System.currentTimeMillis() should return the same value across time zones (minus the usual drift, leap ...
Apr 11, 2013 · All of the above is now considered obsolete. Python 3.2 introduced datetime.timezone so that a proper tzinfo for UTC could be available to all. So the modern version becomes: def utc_now(): return datetime.datetime.now(tz=datetime.timezone.utc) edited Aug 3, 2023 at 0:54. answered Apr 11, 2013 at 3:36. Mark Ransom.
Mar 18, 2012 · Timestamp is always in UTC. new Date().toString() will show you current time zone time representation, new Date().toUTCString() will show you UTC time repr, but new Date().getTime() is always UTC, because that is what Unix time is defined as: "Unix time (also known as POSIX time or epoch time) is a system for describing instants in time, defined as the number of seconds that have elapsed since 00:00:00 Coordinated Universal Time (UTC), Thursday, 1 January 1970, not counting leap seconds."
Jun 14, 2012 · EDIT: I did some more investigation changing the time zone on my computer manually to check this and a TimeZoneInfo for GMT+12 looks like this: PS> [TimeZoneInfo]::Local. Id : UTC+12. DisplayName : (GMT+12:00) Coordinated Universal Time+12. StandardName : UTC+12.
Jan 6, 2016 · Here's a simple little utility class that you can use to convert local date times from zone to zone, including a utility method directly to convert a local date time from the current zone to UTC (with main method so you can run it and see the results of a simple test):
Nov 21, 2018 · Date.now(); From the documentation, The value returned by the getTime method is the number of milliseconds since 1 January 1970 00:00:00 UTC. If you wanted to make a time stamp without milliseconds you can use, Math.floor(Date.now() / 1000); I wanted to make this an answer so the correct method is more visible.
Dec 28, 2011 · Essentially, UTC = GMT+00:00. Then, at a later time UTC was adopted as the best way to refer to the start of this agreed 1st January 1970 rule to avoid confusing it with the time for UK and similar time zone countries. UTC is the standard. GMT is the time zone for a country/countries.
Jul 21, 2009 · The following will return the current UTC date as just that -- a DATE. CAST(sys_extract_utc(SYSTIMESTAMP) AS DATE) I often store dates like this, usually with the field name ending in _UTC to make it clear for the developer. This allows me to avoid the complexity of time zones until last-minute conversion by the user's client.
Sep 1, 2016 · Example: At 1300 hrs (1pm) on September 1st, 2016 in the Pacific Time Zone during DST, I get the response: 2016-09-01 13:00:00Z (the local time with a "Z" appended) when I was expecting: 2016-09-01 20:00:00Z (correct UTC/GMT time) So basically, my code is just getting a string representing the "local" time and appending a "Z".
