حساب المدد الزمنية.

Duration arithmetic, not clock times; hours can exceed 24.

Add or subtract durations in hours, minutes and seconds. Duration arithmetic, not clock times; hours can exceed 24. Inputs stay on your device. Review the preview or output before using it; refresh the page to clear the current working session.

01:30:00 + 00:45:00 = 02:15:00.