英文:
Date.now() equivalent in Go
问题
在JavaScript中，我可以这样赋值：
var now = Date.now();
然后将now用作数字变量进行计算。
在Go语言中，time.Time类型似乎无法满足这个需求。Go语言中与JavaScript的Date.now()等效的是什么？
英文:
In JavaScript, I can assign:
var now = Date.now();
Then use now to calculate as a number variable
time.Time type in Go doesn't seem to meet this demand. What is the Go equivalent of JavaScript's Date.now() ?
答案1
得分: 17
Date.now() 返回自纪元以来的毫秒数（以协调世界时为准）。
> now() 方法返回自 1970 年 1 月 1 日 00:00:00 UTC 至今经过的毫秒数，以数字形式表示。
要在 Go 中获取这个值，你可以使用以下代码：
time.Now().UTC().UnixNano() / 1e6
或者在 Go 版本 1.17 之后可以使用：
time.Now().UTC().UnixMilli()
英文:
Date.now() returns milliseconds since epoch UTC
> The now() method returns the milliseconds elapsed since 1 January 1970
> 00:00:00 UTC up until now as a Number.
To get that in Go, you can use:
time.Now().UTC().UnixNano() / 1e6
or since Go version 1.17
time.Now().UTC().UnixMilli()
答案2
得分: 3
你可以使用"time"包中的"Now"函数来获取当前时间，示例如下：
package main
import (
"fmt"
"time"
)
func main() {
fmt.Println(time.Now())
fmt.Println(time.Now().Date())
}
示例输出：
2009-11-10 23:00:00 +0000 UTC
2009 November 10
以下是文档中对该函数的解释：
func Now() Time
Now函数返回当前的本地时间。
func (t Time) Date() (year int, month Month, day int)
Date函数返回时间t所在的年份、月份和日期。
你可以在Live Demo中查看示例。
英文:
You can use Now function from "time" package as follows:
package main
import (
"fmt"
"time"
)
func main() {
fmt.Println(time.Now())
fmt.Println(time.Now().Date())
}
Sample output:
2009-11-10 23:00:00 +0000 UTC
2009 November 10
Here is function explanation from documentation:
func Now() Time
Now returns the current local time.
func (t Time) Date() (year int, month Month, day int)
Date returns the year, month, and day in which t occurs.
Watch it in Live Demo.
答案3
得分: 3
Date.Now() 返回当前的 UTC 日期和时间，以 epoch（unix）格式表示。在 Go 中的等效方式是：
time.Now().Unix()
time.Now() 返回当前时间。调用 Unix() 将时间转换为 epoch 或 unix 时间，即 自 1970 年 1 月 1 日 UTC 起经过的秒数
英文:
Date.Now() returns the current UTC date and time in epoch(unix) format. The equivalent in go would be:
time.Now().Unix()
time.Now() returns the current time. Calling Unix() converts the time to epoch or unix time, which is the number of seconds elapsed since January 1, 1970 UTC
答案4
得分: 1
在Go语言中，你可以使用方法time.Now().Date()。
英文:
In go you can use method time.Now().Date()
答案5
得分: 0
在Go语言中，你可以使用以下方法：
package main
import (
"fmt"
"time"
)
func main() {
currentTime := time.Now()
fmt.Println(currentTime.Date()) //
fmt.Println("Current Time in String: ", currentTime.String())
fmt.Println("MM-DD-YYYY : ", currentTime.Format("01-02-2006"))
fmt.Println("YYYY-MM-DD : ", currentTime.Format("2006-01-02"))
fmt.Println("YYYY.MM.DD : ", currentTime.Format("2006.01.02 15:04:05"))
fmt.Println("YYYY#MM#DD {Special Character} : ", currentTime.Format("2006#01#02"))
fmt.Println("YYYY-MM-DD hh:mm:ss : ", currentTime.Format("2006-01-02 15:04:05"))
fmt.Println("Time with MicroSeconds: ", currentTime.Format("2006-01-02 15:04:05.000000"))
fmt.Println("Time with NanoSeconds: ", currentTime.Format("2006-01-02 15:04:05.000000000"))
fmt.Println("ShortNum Month : ", currentTime.Format("2006-1-02"))
fmt.Println("LongMonth : ", currentTime.Format("2006-January-02"))
fmt.Println("ShortMonth : ", currentTime.Format("2006-Jan-02"))
fmt.Println("ShortYear : ", currentTime.Format("06-Jan-02"))
fmt.Println("LongWeekDay : ", currentTime.Format("2006-01-02 15:04:05 Monday"))
fmt.Println("ShortWeek Day : ", currentTime.Format("2006-01-02 Mon"))
fmt.Println("ShortDay : ", currentTime.Format("Mon 2006-01-2"))
fmt.Println("Short Hour Minute Second: ", currentTime.Format("2006-01-02 3:4:5"))
fmt.Println("Short Hour Minute Second: ", currentTime.Format("2006-01-02 3:4:5 PM"))
fmt.Println("Short Hour Minute Second: ", currentTime.Format("2006-01-02 3:4:5 pm"))
// 2021 February 10
// Current Time in String: 2021-02-10 11:47:30.5807222 +0530 +0530 m=+0.001994001
// MM-DD-YYYY : 02-10-2021
// YYYY-MM-DD : 2021-02-10
// YYYY.MM.DD : 2021.02.10 11:47:30
// YYYY#MM#DD {Special Character} : 2021#02#10
// YYYY-MM-DD hh:mm:ss : 2021-02-10 11:47:30
// Time with MicroSeconds: 2021-02-10 11:47:30.580722
// Time with NanoSeconds: 2021-02-10 11:47:30.580722200
// ShortNum Month : 2021-2-10
// LongMonth : 2021-February-10
// ShortMonth : 2021-Feb-10
// ShortYear : 21-Feb-10
// LongWeekDay : 2021-02-10 11:47:30 Wednesday
// ShortWeek Day : 2021-02-10 Wed
// ShortDay : Wed 2021-02-10
// Short Hour Minute Second: 2021-02-10 11:47:30
// Short Hour Minute Second: 2021-02-10 11:47:30 AM
// Short Hour Minute Second: 2021-02-10 11:47:30 am
}
这段代码展示了在Go语言中如何使用时间相关的方法。
英文:
In go you can use these methods
package main
import (
"fmt"
"time"
)
func main() {
currentTime := time.Now()
fmt.Println(currentTime.Date()) //
fmt.Println("Current Time in String: ", currentTime.String())
fmt.Println("MM-DD-YYYY : ", currentTime.Format("01-02-2006"))
fmt.Println("YYYY-MM-DD : ", currentTime.Format("2006-01-02"))
fmt.Println("YYYY.MM.DD : ", currentTime.Format("2006.01.02 15:04:05"))
fmt.Println("YYYY#MM#DD {Special Character} : ", currentTime.Format("2006#01#02"))
fmt.Println("YYYY-MM-DD hh:mm:ss : ", currentTime.Format("2006-01-02 15:04:05"))
fmt.Println("Time with MicroSeconds: ", currentTime.Format("2006-01-02 15:04:05.000000"))
fmt.Println("Time with NanoSeconds: ", currentTime.Format("2006-01-02 15:04:05.000000000"))
fmt.Println("ShortNum Month : ", currentTime.Format("2006-1-02"))
fmt.Println("LongMonth : ", currentTime.Format("2006-January-02"))
fmt.Println("ShortMonth : ", currentTime.Format("2006-Jan-02"))
fmt.Println("ShortYear : ", currentTime.Format("06-Jan-02"))
fmt.Println("LongWeekDay : ", currentTime.Format("2006-01-02 15:04:05 Monday"))
fmt.Println("ShortWeek Day : ", currentTime.Format("2006-01-02 Mon"))
fmt.Println("ShortDay : ", currentTime.Format("Mon 2006-01-2"))
fmt.Println("Short Hour Minute Second: ", currentTime.Format("2006-01-02 3:4:5"))
fmt.Println("Short Hour Minute Second: ", currentTime.Format("2006-01-02 3:4:5 PM"))
fmt.Println("Short Hour Minute Second: ", currentTime.Format("2006-01-02 3:4:5 pm"))
// 2021 February 10
// Current Time in String: 2021-02-10 11:47:30.5807222 +0530 +0530 m=+0.001994001
// MM-DD-YYYY : 02-10-2021
// YYYY-MM-DD : 2021-02-10
// YYYY.MM.DD : 2021.02.10 11:47:30
// YYYY#MM#DD {Special Character} : 2021#02#10
// YYYY-MM-DD hh:mm:ss : 2021-02-10 11:47:30
// Time with MicroSeconds: 2021-02-10 11:47:30.580722
// Time with NanoSeconds: 2021-02-10 11:47:30.580722200
// ShortNum Month : 2021-2-10
//LongMonth : 2021-February-10
//ShortMonth : 2021-Feb-10
//ShortYear : 21-Feb-10
//LongWeekDay : 2021-02-10 11:47:30 Wednesday
// ShortWeek Day : 2021-02-10 Wed
//ShortDay : Wed 2021-02-10
// Short Hour Minute Second: 2021-02-10 11:47:30
// Short Hour Minute Second: 2021-02-10 11:47:30 AM
// Short Hour Minute Second: 2021-02-10 11:47:30 am
}
答案6
得分: 0
Go
time.Now().UTC().UnixMilli()
参考链接：https://pkg.go.dev/time#Time.UnixMilli
> 注意：我在发现这个问题时使用的是 go 1.20 版本。
Javascript
Date.now()
两者将得到相同的结果：1677469641253
英文:
Go
time.Now().UTC().UnixMilli()
See reference: https://pkg.go.dev/time#Time.UnixMilli
> Note: I am using go 1.20 when I discovered this.
Javascript
Date.now()
Both will have the same result: 1677469641253
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