在golang中将12小时格式转换为24小时格式时间

Question

In golang I have not found any way to convert 12 hour format string time to 24 hour format as below:

07:05:45PM to 19:05:45

I have tried below using layout

layout := "Mon Jan 2 15:04:05 -0700 MST 2006"
/*
 * Write your code here.
 */
//layout := "3:04PM"
t,_ := time.Parse(layout,s)
fmt.Println(t)

Output is:

07:05:45PM

I have looked for answers similar to this but it is not helping everyone is using whole layout. I found answers in another language but not in go.

Answer 1

For example,

package main

import (
    "fmt"
    "time"
)

func main() {
    layout1 := "03:04:05PM"
    layout2 := "15:04:05"
    t, err := time.Parse(layout1, "07:05:45PM")
    if err != nil {
        fmt.Println(err)
        return
    }
    fmt.Println(t.Format(layout1))
    fmt.Println(t.Format(layout2))
}

Playground: https://play.golang.org/p/Ypn2-lEF_Zs

Output:

07:05:45PM
19:05:45

---

Reference: package time