1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
/*
* This file is part of Arduino Builder.
*
* Copyright 2016 Arduino LLC (http://www.arduino.cc/)
*
* Arduino Builder is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* As a special exception, you may use this file as part of a free software
* library without restriction. Specifically, if other files instantiate
* templates or use macros or inline functions from this file, or you compile
* this file and link it with other files to produce an executable, this
* file does not by itself cause the resulting executable to be covered by
* the GNU General Public License. This exception does not however
* invalidate any other reasons why the executable file might be covered by
* the GNU General Public License.
*/
package timeutils
import "time"
// TimezoneOffsetNoDST returns the timezone offset without the DST component
func TimezoneOffsetNoDST(t time.Time) int {
_, winterOffset := time.Date(t.Year(), 1, 1, 0, 0, 0, 0, t.Location()).Zone()
_, summerOffset := time.Date(t.Year(), 7, 1, 0, 0, 0, 0, t.Location()).Zone()
if winterOffset > summerOffset {
winterOffset, summerOffset = summerOffset, winterOffset
}
return winterOffset
}
// DaylightSavingsOffset returns the DST offset of the specified time
func DaylightSavingsOffset(t time.Time) int {
_, offset := t.Zone()
return offset - TimezoneOffsetNoDST(t)
}
// LocalUnix returns the unix timestamp of the specified time with the
// local timezone offset and DST added
func LocalUnix(t time.Time) int64 {
_, offset := t.Zone()
return t.Unix() + int64(offset)
}
|
