Created
March 8, 2016 09:59
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Time thing in golang
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| package main | |
| import ( | |
| "fmt" | |
| "time" | |
| ) | |
| var utc *time.Location | |
| func main() { | |
| utc, _ = time.LoadLocation("UTC") | |
| nl, _ := time.LoadLocation("Europe/Amsterdam") | |
| de, _ := time.LoadLocation("Europe/Berlin") | |
| us, _ := time.LoadLocation("America/New_York") | |
| // Morning newsletter | |
| // NL | |
| printStuff("2016-03-15T07:10:00Z", nl) | |
| fmt.Println("-------------------------------------------------------") | |
| // DE | |
| printStuff("2016-03-15T07:10:00Z", de) | |
| fmt.Println("-------------------------------------------------------") | |
| // US | |
| printStuff("2016-03-15T12:10:00Z", us) | |
| fmt.Println("-------------------------------------------------------") | |
| fmt.Println("") | |
| fmt.Println("") | |
| fmt.Println("Very long evening newsletter") | |
| fmt.Println("") | |
| // Evening newsletter (with very long delay) | |
| // NL | |
| printStuffAndCompare("2016-03-15T19:10:00Z", "2016-03-15T07:10:00Z", nl) | |
| fmt.Println("-------------------------------------------------------") | |
| // DE | |
| printStuffAndCompare("2016-03-15T19:10:00Z", "2016-03-15T07:10:00Z", de) | |
| fmt.Println("-------------------------------------------------------") | |
| // US | |
| printStuffAndCompare("2016-03-16T00:10:00Z", "2016-03-15T12:10:00Z", us) | |
| } | |
| func printStuffAndCompare(current_newsletter, last_sent_newsletter string, loc *time.Location) { | |
| printStuff(current_newsletter, loc) | |
| current_newsletter_time, _ := time.Parse(time.RFC3339, current_newsletter) | |
| current_newsletter_without_time := withoutTime(current_newsletter_time.In(loc)) | |
| last_sent_time, _ := time.Parse(time.RFC3339, last_sent_newsletter) | |
| last_sent_without_time := withoutTime(last_sent_time.In(loc)) | |
| if !current_newsletter_without_time.Equal(last_sent_without_time) { | |
| fmt.Printf("Times didn't match up: %s - %s\n", current_newsletter_without_time, last_sent_without_time) | |
| } | |
| } | |
| func printStuff(timeString string, loc *time.Location) { | |
| parsed_time, _ := time.Parse(time.RFC3339, timeString) | |
| fmt.Println(parsed_time) | |
| fmt.Println(parsed_time.In(loc)) | |
| fmt.Println(withoutTime(parsed_time.In(loc))) | |
| } | |
| func withoutTime(input time.Time) time.Time { | |
| return time.Date(input.Year(), input.Month(), input.Day(), 0, 0, 0, 0, utc) | |
| } |
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