The GTFS specifications specifies that the time is defined as starting from noon minus 12 hours, in order to avoid a DST change happening on a service day. Therefore, trains departing before the DST change, i.e. 02:00, should be considered part of the previous service day in GTFS:
A train scheduled to depart 01:05 on March changeover day will run on GMT for its whole journey, while a train scheduled to depart 02:05 will run on BST.
A train scheduled to depart 01:05 on October changeover day will run on BST for its whole journey, while a train scheduled to depart 02:05 will run on GMT.
This doesn't have any special handling on skipped / additional trains in the skipped / additional hour on the Night Overground services, which the handling is yet to be confirmed.
The GTFS specifications specifies that the time is defined as starting from noon minus 12 hours, in order to avoid a DST change happening on a service day. Therefore, trains departing before the DST change, i.e. 02:00, should be considered part of the previous service day in GTFS:
This doesn't have any special handling on skipped / additional trains in the skipped / additional hour on the Night Overground services, which the handling is yet to be confirmed.
Fixes #86 .