To find the departure time for the commuter train closest to 1 PM, we can calculate the schedule based on the first departure at 5:20 AM and subsequent trains leaving every 40 minutes.
- The first train leaves at 5:20 AM.
- The trains will leave at the following times:
- 5:20 AM
- 6:00 AM (5:20 + 40 minutes)
- 6:40 AM
- 7:20 AM
- 8:00 AM
- 8:40 AM
- 9:20 AM
- 10:00 AM
- 10:40 AM
- 11:20 AM
- 12:00 PM
- 12:40 PM
- 1:20 PM
The times between 12:00 PM and 1 PM are:
- 12:00 PM
- 12:40 PM
After 12:40 PM, the next train leaves at 1:20 PM.
Therefore, the two departure times closest to 1 PM are 12:40 PM and 1:20 PM. The closest departure time to 1 PM is 1:20 PM.
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