Minimum digits to show the numeric hour. For example, `1`, `12`.
Or `23` if using the `twentyFourHour` clock.
- Note: This format does not take user's locale preferences into account. Consider using `defaultDigits` if applicable.
Numeric two-digit hour, zero padded if necessary.
For example, `01`, `12`.
Or `23` if using the `twentyFourHour` clock.
- Note: This format does not take user's locale preferences into account. Consider using `defaultDigits` if applicable.