The posted hours for this facility Monday - Sunday 7:30am to 8:30pm. If you need to have your ticket in hand to board a Greyhound bus prior to 7:30am or after 8:30pm will need to pick up ticket during normal business hours or to purchase your ticket online and choose "Print at home" option.
7 am when the window opens
For my understanding you can pick up your ticket at 7 a.m. Just like, Darwin Hill said
you can pick up your ticket at 7 am
Depends on the time you bought the ticket and time for scheduled departure.
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