Date Templating

M month (1) MM month (01) MMM month (Jan) MMMM month (January)
D day (2) DD day (02) DDD day (Mon) DDDD day (Monday)
YY year (06) YYYY year (2006)
hh hours (15) mm minutes (04) ss seconds (05)

If you have no URL to an .ics file at hand and you can't be bothered to look for one, here's some:

Moon Phases https://mooncal.ch/mooncal.ics...
UK Holidays https://calendar.google.com/calendar/ical...
USA Holidays https://calendar.google.com/calendar/ical...