Format time.Duration to Days, Hours, and Minutes

format-timedelta.go

package main

import (
	"fmt"
	"time"
)

// formatTimedelta converts seconds into days, hours, and minutes.
func formatTimedelta(t time.Duration) string {
    seconds := t * time.Second
    if seconds > 31536000 {
        return ""
    }
    days := int(seconds.Seconds() / 86400) 
    hours := int(seconds.Seconds() / 3600) % 24
    minutes := int(seconds.Seconds() / 60) % 60
    return fmt.Sprintf("%dd %dh %dm\n", days, hours, minutes)
}

func main() {
	fmt.Println(formatTimedelta(964800))
	fmt.Println(formatTimedelta(965100))
}

// Output
// 11d 4h 0m
// 11d 4h 5m