[](
https://travis-ci.org/karupanerura/Time-Strptime) [](
https://codecov.io/github/karupanerura/Time-Strptime?branch=master) [](
https://metacpan.org/release/Time-Strptime)
# NAME
Time::Strptime - parse date and time string.
# SYNOPSIS
```perl
use Time::Strptime qw/strptime/;
# function
my ($epoch_f, $offset_f) = strptime('%Y-%m-%d %H:%M:%S', '2014-01-01 00:00:00');
# OO style
my $fmt = Time::Strptime::Format->new('%Y-%m-%d %H:%M:%S');
my ($epoch_o, $offset_o) = $fmt->parse('2014-01-01 00:00:00');
```
# DESCRIPTION
Time::Strptime is pure perl date and time string parser.
In other words, This is pure perl implementation a [strptime(3)](
http://man.he.net/man3/strptime).
This module allows you to perform better by pre-compile the format by string.
benchmark:GMT(-0000) `tp=Time::Piece, ts=Time::Strptime, pt=POSIX::strptime(+Time::Local), tm=Time::Moment`
```
Benchmark: running pt, tm, tp, tp(cached), ts(cached) for at least 10 CPU seconds...
pt: 11 wallclock secs (10.41 usr + 0.01 sys = 10.42 CPU) @ 297345.59/s (n=3098341)
tm: 10 wallclock secs (10.17 usr + 0.01 sys = 10.18 CPU) @ 2481673.28/s (n=25263434)
tp: 10 wallclock secs (10.52 usr + 0.01 sys = 10.53 CPU) @ 56390.98/s (n=593797)
tp(cached): 11 wallclock secs (10.53 usr + 0.01 sys = 10.54 CPU) @ 80838.24/s (n=852035)
ts(cached): 11 wallclock secs (10.60 usr + 0.01 sys = 10.61 CPU) @ 267686.15/s (n=2840150)
Rate tp tp(cached) ts(cached) pt tm
tp 56391/s -- -30% -79% -81% -98%
tp(cached) 80838/s 43% -- -70% -73% -97%
ts(cached) 267686/s 375% 231% -- -10% -89%
pt 297346/s 427% 268% 11% -- -88%
tm 2481673/s 4301% 2970% 827% 735% --
```
benchmark:Asia/Tokyo(-0900) `tp=Time::Piece, ts=Time::Strptime, pt=POSIX::strptime(+Time::Local), tm=Time::Moment`
```
Benchmark: running pt, tm, tp, tp(cached), ts(cached) for at least 10 CPU seconds...
pt: 10 wallclock secs (10.29 usr + 0.05 sys = 10.34 CPU) @ 147048.07/s (n=1520477)
tm: 10 wallclock secs (10.00 usr + 0.03 sys = 10.03 CPU) @ 2344311.67/s (n=23513446)
tp: 10 wallclock secs (10.15 usr + 0.02 sys = 10.17 CPU) @ 44565.39/s (n=453230)
tp(cached): 11 wallclock secs (10.41 usr + 0.06 sys = 10.47 CPU) @ 50136.29/s (n=524927)
ts(cached): 10 wallclock secs (10.73 usr + 0.07 sys = 10.80 CPU) @ 114871.48/s (n=1240612)
Rate tp tp(cached) ts(cached) pt tm
tp 44565/s -- -11% -61% -70% -98%
tp(cached) 50136/s 13% -- -56% -66% -98%
ts(cached) 114871/s 158% 129% -- -22% -95%
pt 147048/s 230% 193% 28% -- -94%
tm 2344312/s 5160% 4576% 1941% 1494% --
```
# FAQ
## What's the difference between this module and other modules?
This module is fast and not require XS. but, support epoch `strptime` only.
[DateTime](
https://metacpan.org/pod/DateTime) is very useful and stable! but, It is slow.
[Time::Piece](
https://metacpan.org/pod/Time::Piece) is fast and useful! but, treatment of time zone is confusing. and, require XS.
[Time::Moment](
https://metacpan.org/pod/Time::Moment) is very fast and useful! but, does not support `strptime`. and, require XS.
## How to specify a time zone?
Set time zone name or [DateTime::TimeZone](
https://metacpan.org/pod/DateTime::TimeZone) object to `time_zone` option.
```perl
use Time::Strptime::Format;
my $format = Time::Strptime::Format->new('%Y-%m-%d %H:%M:%S', { time_zone => 'Asia/Tokyo' });
my ($epoch, $offset) = $format->parse('2014-01-01 00:00:00');
```
## How to specify a locale?
Set locale name object to `locale` option.
```perl
use Time::Strptime::Format;
my $format = Time::Strptime::Format->new('%Y-%m-%d %H:%M:%S', { locale => 'ja_JP' });
my ($epoch, $offset) = $format->parse('2014-01-01 00:00:00');
```
# LICENSE
Copyright (C) karupanerura.
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
# AUTHOR
karupanerura <
[email protected]>
