Updating The Date - Hitachi S10VE User Manual

11. Operation

11.6.3 Updating the date

The date is updated automatically as follows:
Automatic determination of long and short months:
31 days for Jan., Mar., May, Jul., Aug., Oct., and Dec. → 1st of the next month
30 days for Apr., Jun., Sept., and Nov. → 1st of the next month
Automatic determination of leap years:
Feb. 29 in a leap year (2020, 2024, 2028) → March 1
Feb. 28 in a non-leap year (2018, 2019, 2021) → March 1
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