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version 2.098.0

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Module std.datetime

Phobos provides the following functionality for time:

Functionality Symbols
Points in Time Date  TimeOfDay  DateTime  SysTime 
Timezones TimeZone  UTC  LocalTime  PosixTimeZone  WindowsTimeZone  SimpleTimeZone 
Intervals and Ranges of Time Interval  PosInfInterval  NegInfInterval 
Durations of Time Duration  weeks  days  hours  minutes  seconds  msecs  usecs  hnsecs  nsecs 
Time Measurement and Benchmarking MonoTime  StopWatch  benchmark 

This functionality is separated into the following modules

See Also

Introduction to std.datetime
ISO 8601
Wikipedia entry on TZ Database
List of Time Zones

Example

Get the current time from the system clock 

import std.datetime.systime : SysTime, Clock;

SysTime currentTime = Clock.currTime();

Example

Construct a specific point in time without timezone information and get its ISO string. 

import std.datetime.date : DateTime;

auto dt = DateTime(2018, 1, 1, 12, 30, 10);
writeln(dt.toISOString()); // "20180101T123010"
writeln(dt.toISOExtString()); // "2018-01-01T12:30:10"

Example

Construct a specific point in time in the UTC timezone and add two days. 

import std.datetime.systime : SysTime;
import std.datetime.timezone : UTC;
import core.time : days;

auto st = SysTime(DateTime(2018, 1, 1, 12, 30, 10), UTC());
writeln(st.toISOExtString()); // "2018-01-01T12:30:10Z"
st += 2.days;
writeln(st.toISOExtString()); // "2018-01-03T12:30:10Z"

Authors

Jonathan M Davis and Kato Shoichi

License

Boost License 1.0.