Whether the ISO 8601 representation of this hour is 24 or 00: whether this instant of midnight is to be considered the end of the previous day or the start of the next.
If the time of val is not exactly 00:00:00.000, this value is undefined.
See Implementation
Whether the ISO 8601 representation of this hour is 24 or 00: whether this instant of midnight is to be considered the end of the previous day or the start of the next.
If the time of val is not exactly 00:00:00.000, this value is undefined.