hh is a bash script which calculates the Hanke-Henry Permanent Calendar (HHPC) date from the current (or supplied) date.

The HHPC is one of many examples of leap week calendars, calendars which maintain synchronization with the solar year by intercalating entire weeks rather than single days. By reducing common years to 364 days (52 weeks), and adding an extra week every five or six years, it eliminates weekday drift and synchronizes the calendar year with the seasonal change as the Earth circles the Sun. As part of the calendar proposal, time zones would be eliminated and replaced with UTC.

See: http://hankehenryontime.com/ for more details.

• Copy script to local bin directory path.
• Copy man file to local share/man or manpath.
• Copy getusage to local bin directory or path.

As an aficionado of horology, I went looking for a tool which would easily calculate the HHPC date. While several examples of code could be found to enable such calculations through websites (e.g. Javascript), I needed something which could display the HHPC date on the commandline.

Finding none, I created my own.

Paul J Henry [email protected]
20 September 2020