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The time duration from 4pm to 4am is exactly 12 hours, which equals 720 minutes or 43200 seconds.
4pm to 4am spans 12 hours. This period is during the afternoon hours when people are typically active and working.
The calculator above automatically sets the times to 4pm (16:00) and 4am (04:00), 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.
