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lines changed Original file line number Diff line number Diff line change @@ -28,4 +28,5 @@ func (r *register) Regist(m mapping.ExampleMapping) {
2828 m ["time_json" ] = TimeJson
2929 m ["time_json_custom" ] = TimeJsonCustom
3030 m ["time_in" ] = TimeIn
31+ m ["time_change_timezone" ] = ChangeTimeZone
3132}
Original file line number Diff line number Diff line change 1+ package times
2+
3+ import (
4+ "time"
5+
6+ "github.com/devlights/gomy/output"
7+ )
8+
9+ // ChangeTimeZone は、time.Timeをいろいろなタイム・ゾーンの値に変換するサンプルです.
10+ func ChangeTimeZone () error {
11+ // JSTの現在時刻を取得
12+ locJst , err := time .LoadLocation ("Asia/Tokyo" )
13+ if err != nil {
14+ return err
15+ }
16+
17+ jst := time .Now ().In (locJst )
18+ output .Stdoutf ("[JST]" , "%v\n " , jst )
19+
20+ // UTCへ変換
21+ utc := jst .UTC ()
22+ output .Stdoutf ("[UTC]" , "%v\n " , utc )
23+
24+ // UTCからPDTに変換
25+ // (*) 夏時間(太平洋夏時間, Daylight Saving Time, DST)が適用されている場合でも
26+ // このコードで自動的にDSTが考慮される
27+ locPdt , err := time .LoadLocation ("America/Los_Angeles" )
28+ if err != nil {
29+ return err
30+ }
31+
32+ pdt := utc .In (locPdt )
33+ output .Stdoutf ("[PDT]" , "%v\n " , pdt )
34+
35+ return nil
36+ }
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