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The time duration from 8am to 9am is exactly 1 hour, which equals 60 minutes or 3600 seconds.
8am to 9am spans one hour. 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 9am (09:00), but you can adjust the date or add seconds for more specific calculations.
