允许从星期日到星期五运行吗？

The following PHP code that allows a process to only run between certain times. How would this be done in GoLang?

$curdate = date('Y-m-d');
$mydate=getdate(strtotime($curdate));
if ( $mydate['wday'] === 0 ) {
  if ( date('H') < 15 ) { exit; }; // This is for 0 Sunday!!!
}
if ( $mydate['wday'] === 5 ) {
  if ( date('H') > 19 ) { exit; }; // This is for 5 Friday!!!
}
if ( $mydate['wday'] === 6 ) {
  exit;  // This is for 6 Saturday //
}

This should do the same thing:

now := time.Now()
day := now.Weekday()
hr  := now.Hour()

if day == 0 {
    if hr < 15 { os.Exit(0) }
} 
if day == 5 {
    if hr > 19 { os.Exit(0) }
}
if day == 6 {
    os.Exit(0)
}

Where similarly, each day can be represented by an integer (0 - 6).

Note that to use time and os you will need to call

import "time"
import "os"

See the documentation for more about Golang time.

Don't write PHP code as Go code. Write Go code. For example,

package main

import (
    "os"
    "time"
)

func main() {
    now := time.Now()
    hour := now.Hour()
    switch now.Weekday() {
    case time.Sunday:
        if hour < 15 {
            os.Exit(0)
        }
    case time.Friday:
        if hour > 19 {
            os.Exit(0)
        }
    case time.Saturday:
        os.Exit(0)
    }
    // Do Something
}