Can't change departure time between 00:00 and 01:00.
See: https://www.airlineenterprise.com/forums/showthread.php?tid=527
There is an issue where you cannot edit route timings between 00:00 and 01:00.
Steps to Reproduce
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Create route that has a stop with a ready time after 00:00 but before 01:00
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Try to change the minute of that departure (do not change the hour yet).
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Save the route
If you change the hour, everything works fine. But if you then change the hour back to 00:00, the minute defaults to the ready at time and will not let you select a custom minute.