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Efficient time formatting library (strftime, strptime) for Golang
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itchyny/timefmt-go
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This is a Go language package for formatting and parsing date time strings.
package mainimport ("fmt""log""github.com/itchyny/timefmt-go")funcmain() {t,err:=timefmt.Parse("2020/07/24 09:07:29","%Y/%m/%d %H:%M:%S")iferr!=nil {log.Fatal(err)}fmt.Println(t)// 2020-07-24 09:07:29 +0000 UTCstr:=timefmt.Format(t,"%Y/%m/%d %H:%M:%S")fmt.Println(str)// 2020/07/24 09:07:29str=timefmt.Format(t,"%a, %d %b %Y %T %z")fmt.Println(str)// Fri, 24 Jul 2020 09:07:29 +0000}
Please refer toman 3 strftime
andman 3 strptime
for formatters.As an extension,%f
directive is supported for zero-padded microseconds, which originates from Python.Note thatE
andO
modifier characters are not supported.
- This library
- provides both formatting and parsing functions in pure Go language,
- depends only on the Go standard libraries not to grow up dependency.
Format
(strftime
) implements glibc extensions including- width specifier like
%6Y %10B %4Z
(limited to 1024 bytes), - omitting padding modifier like
%-y-%-m-%-d
, - space padding modifier like
%_y-%_m-%_d
, - upper case modifier like
%^a %^b
, - swapping case modifier like
%#Z
, - time zone offset modifier like
%:z %::z %:::z
, - and its performance is very good.
- width specifier like
AppendFormat
is provided for reducing allocations.Parse
(strptime
) allows to parse- composed directives like
%F %T
, - century years like
%C %y
, - week directives like
%W %a
and%G-W%V-%u
.
- composed directives like
ParseInLocation
is provided for configuring the default location.
Report bug atIssues・itchyny/timefmt-go - GitHub.
itchyny (https://github.com/itchyny)
This software is released under the MIT License, see LICENSE.
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Efficient time formatting library (strftime, strptime) for Golang
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