Hanke-Henry Permanent Calendar Converter

Enter Gregorian Calendar Date

Time:

HHPC Date:

Enter a Gregorian calendar date between 1970 and 2200 and the corresponding Hanke-Henry Permanent Calendar date will be outputted.

This calendar converter will also convert the time from your current time zone to Coordinated Universal Time (UTC), which would be adopted alongside the HHPC.

Enter HHPC Date

Time:

Gregorian Date:

Enter a Hanke-Henry Permanent Calendar date between the year 1970 and 2200 and the corresponding Gregorian Calendar date will be outputted.

To enter a date in Xtr (Extra) month, input 13 in the month slot. See the Calendar tab of the HHOT website for a list of years with the Xtr month.

This calendar converter will also convert the time from Coordinated Universal Time (UTC), which would be adopted alongside the HHPC, to your current time zone.