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The time duration from 8am to 4am is exactly 20 hours, which equals 1200 minutes or 72000 seconds.
8am to 4am spans 20 hours. This period is during the morning hours when most people are active and starting their workday.
The calculator above automatically sets the times to 8am (08:00) 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.
