Temporal's startOfDay(): the first instant of the calendar day of each
value in its own zone, which is not always midnight (a day may start at
01:00 when a clock gap removes midnight, as in Asuncion or Havana).
Usage
temporal_start_of_day(x)
# S3 method for class 'zutempo_zoned_date_time'
temporal_start_of_day(x)Examples
temporal_start_of_day(zoned_date_time("2026-03-07T12:00[America/New_York]"))
#> <zutempo_zoned_date_time[1]>
#> [1] 2026-03-07T00:00:00-05:00[America/New_York]