We currently throw an exception if the start time exceeds the
auto-detected end time at the duration even though an app can't
know this in advance in all cases. We should still throw an
exception if app-provided input values are non-sensical, but
auto-adjust the start time to the duration if needed similar to
how we already adjust the end time.
PiperOrigin-RevId: 737585207
(cherry picked from commit 343a7b054e3e90974c6930f56230b2e96c440d4e)
1512b5b622