英文:
How to convert a string time with milliseconds (hh:mm:ss.xxx) to time.Time?
问题
基本上，我有一个像这样的字符串时间：
15:56:36.113
我想将其转换为 time.Time 类型。
根据我所了解，使用 time.Parse() 时无法使用毫秒。
是否有其他方法可以将我的字符串转换为 time.Time 类型？
英文:
Basically I have times like this one as a string:
15:56:36.113
I want to convert it to time.Time.
From what I am reading I cannot use milliseconds when using time.Parse().
Is there another way to convert my string to time.Time ?
答案1
得分: 2
格式化参考时间
小数点后跟随一个或多个零表示小数秒，打印到指定的小数位数。小数点后跟随一个或多个九表示小数秒，打印到指定的小数位数，并去除尾部的零。在解析时，输入可以包含一个小数秒字段，即使布局不表示其存在。在这种情况下，小数点后跟随一系列数字将被解析为小数秒。
例如，
package main
import (
"fmt"
"time"
)
func main() {
t, err := time.Parse("15:04:05", "15:56:36.113")
if err != nil {
fmt.Println(err)
}
fmt.Println(t)
fmt.Println(t.Format("15:04:05.000"))
h, m, s := t.Clock()
ms := t.Nanosecond() / int(time.Millisecond)
fmt.Printf("%02d:%02d:%02d.%03d\n", h, m, s, ms)
}
输出：
0000-01-01 15:56:36.113 +0000 UTC
15:56:36.113
15:56:36.113
注意：Time 类型的零值为 0000-01-01 00:00:00.000000000 UTC。
英文:
> Package time
>
> Format Reference Time
>
> A decimal point followed by one or more zeros represents a fractional
> second, printed to the given number of decimal places. A decimal point
> followed by one or more nines represents a fractional second, printed
> to the given number of decimal places, with trailing zeros removed.
> When parsing (only), the input may contain a fractional second field
> immediately after the seconds field, even if the layout does not
> signify its presence. In that case a decimal point followed by a
> maximal series of digits is parsed as a fractional second.
For example,
package main
import (
"fmt"
"time"
)
func main() {
t, err := time.Parse("15:04:05", "15:56:36.113")
if err != nil {
fmt.Println(err)
}
fmt.Println(t)
fmt.Println(t.Format("15:04:05.000"))
h, m, s := t.Clock()
ms := t.Nanosecond() / int(time.Millisecond)
fmt.Printf("%02d:%02d:%02d.%03d\n", h, m, s, ms)
}
Output:
0000-01-01 15:56:36.113 +0000 UTC
15:56:36.113
15:56:36.113
Note: The zero value of type Time is 0000-01-01 00:00:00.000000000 UTC.
答案2
得分: 1
package main
import (
"fmt"
"time"
)
func main() {
s := "15:56:36.113"
t, _ := time.Parse("15:04:05.000", s)
fmt.Print(t)
}
输出：
0000-01-01 15:56:36.113 +0000 UTC
你可以在这里进行更多的尝试：https://play.golang.org/p/3A3e8zHQ8r
英文:
package main
import (
"fmt"
"time"
)
func main() {
s := "15:56:36.113"
t,_ := time.Parse("15:04:05.000", s)
fmt.Print(t)
}
Output:
0000-01-01 15:56:36.113 +0000 UTC
You can play with it more here: https://play.golang.org/p/3A3e8zHQ8r
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