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refactor: time zone sensitivity (resolve #184)

This commit is contained in:
Ferdinand Mütsch
2021-04-25 14:15:18 +02:00
parent 26ef93c1af
commit 6973743f41
15 changed files with 594 additions and 105 deletions

View File

@ -7,12 +7,22 @@ import (
"time"
)
func ParseDate(date string) (time.Time, error) {
return time.Parse(config.SimpleDateFormat, date)
}
func ParseDateTime(date string) (time.Time, error) {
return time.Parse(config.SimpleDateTimeFormat, date)
// ParseDateTimeTZ attempts to parse the given date string from multiple formats.
// First, a time-zoned date-time string (e.g. 2006-01-02T15:04:05+02:00) is tried
// Second, a non-time-zoned date-time string (e.g. 2006-01-02 15:04:05) is tried at the given zone
// Third, a non-time-zoned date string (e.g. 2006-01-02) is tried at the given zone
// Example:
// - Server runs in CEST (UTC+2), requesting user lives in PDT (UTC-7).
// - 2021-04-25T10:30:00Z, 2021-04-25T3:30:00-0100 and 2021-04-25T12:30:00+0200 are equivalent, they represent the same point in time
// - When user requests non-time-zoned range (e.g. 2021-04-25T00:00:00), but has their time zone properly configured, this will resolve to 2021-04-25T09:00:00
func ParseDateTimeTZ(date string, tz *time.Location) (time.Time, error) {
if t, err := time.Parse(time.RFC3339, date); err == nil {
return t, nil
}
if t, err := time.ParseInLocation(config.SimpleDateTimeFormat, date, tz); err == nil {
return t, nil
}
return time.ParseInLocation(config.SimpleDateFormat, date, tz)
}
func FormatDate(date time.Time) string {