When I choose a date before christ (BC), then the time controls for HH, MM and SS (the entries after the "BC" sign) are shifted by one position:
When I select the "BC" sign and then toggle forward and backwards with the arrow keys, then the time changes by 1 hour.
When I select the "HH" number and then toggle forward and backwards with the arrow keys, then the time does not change by 1 hour , but by 1 minute.
When I select the "MM" number and then toggle forward and backwards with the arrow keys, then the time does not change by 1 minute , but by 1 second.
The "SS" number can not be selected.