Half-minute times
Also: h, 1435h, half minute
Working times can land on a half minute, written with an H on the end.
Example
14
35
H
Trains are timed more precisely than the public sees. A working time can be on the half minute, written with an H: 1435H means half past 14:35, so 14:35 and 30 seconds.
Passenger timetables and departure boards round these to whole minutes.
In Trainiac
Trainiac’s public API writes times this way.