Question 1

How do I calculate the duration between two times?

Accepted Answer

Subtract the start time from the end time. Convert to a common unit (minutes or seconds) first. For example: 2:30 PM to 5:15 PM = 2 hours 45 minutes = 165 minutes.

Question 2

How do I handle time durations that span midnight?

Accepted Answer

If the end time is earlier than the start time, the duration crosses midnight. Add 24 hours to the end time before subtracting. Example: 11:00 PM to 2:00 AM = 3 hours.

Question 3

How many hours is a standard work week?

Accepted Answer

The US standard is 40 hours per week (8 hours per day × 5 days). The EU Working Time Directive caps work at 48 hours per week averaged over 17 weeks.

Time Duration Calculator

Add / Subtract Time

Time Duration Calculator

Add / Subtract Time

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