month field

Must be between 1 and 12, inclusive.

day field

Range must be from 1 through the number of days in the month, which is determined from the values of the year and months fields and can be 28, 29, 30, or 31. A leap year can also affect the number of days in the month.

hour field

Must be between 0 and 23, inclusive.

minute field

Must be between 0 and 59, inclusive.

trailing seconds field

Must be between 0 and 61.9(n), inclusive, where n specifies the number of digits at the place of "9" and the value of n is the fractional seconds precision. The range of seconds permits a maximum of two leap seconds to maintain synchronization of sidereal time.