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The time duration from 3pm to 12am (midnight) is exactly 9 hours, which equals 540 minutes or 32400 seconds.
3pm to 12am (midnight) spans 9 hours. This period is during the afternoon hours when people are typically active and working.
The calculator above automatically sets the times to 3pm (15:00) and 12am (00:00), but you can adjust the date or add seconds for more specific calculations.
When the end time is earlier than the start time, the calculator automatically sets the end date to the next day.
