so i got this calendar with lunar phases.

though obvious, didn't notice the pattern till now.

in general,

find the first quarter phase.

the same day for the other weeks of the month,

will have full, new and last quarter.

a column of sorts.

most months are very close.

some spot on.

a few with curious patterns.

https://wyldemoon.co.uk/the-moon/2024-moon-calendar/