On The Subject of Condensed Calendars

It’s beginning to look a lot like Dec 25… or is it Dec 26-Jan 1…? Oct 31?

Timestamp		Mar 22 – Jun 21			Jun 22 – Sep 21			Sep 22 – Dec 21			Dec 22 – Mar 21
Day of Month		1–10	11–20	21–31	1–10	11–20	21–31	1–10	11–20	21–31	1–10	11–20	21–31
LED color	Green	Jan	Nov	Aug	Jun	Mar	Dec	Feb	Jul	Sep	May	Oct	Apr
	Yellow	Dec	Jun	Apr	Oct	May	Feb	Aug	Nov	Mar	Jul	Jan	Sep
	Red	Feb	Jul	Oct	Jan	Sep	Aug	Dec	Apr	Jul	Mar	Nov	Jun
	Blue	May	Mar	Sep	Apr	Jul	Nov	Jun	Oct	Jan	Dec	Aug	Feb

If a date is formatted as #/#, use the 1st # if the correct month has that many days, otherwise use the 2nd #.

		Last Digit of Serial (use first digit if holiday is Apr 1)
Holiday		0	1	2	3	4	5	6	7	8	9
Jan 4		17	24	15	20	1	30/9	28	6	7	14
Jan 6		15	1	31/7	17	26	30/8	24	9	3	25
Jan 26		19	5	24	3	29/1	28	18	30/4	13	12
Feb 2		Click any day in the correct month 3 times. You will receive 2 fake strikes before the module is solved.
Feb 14		11	6	22	14	19	27	20	7	16	23
Mar 17		2	28	18	13	21	12	3	10	20	1
Apr 1*		1	2	3	4	5	6	7	8	9	10
Apr 22		23	13	25	30/3	4	11	27	15	21	31/5
Apr 29-May 6		8	20	17	16	23	16	1	22	24	5
May 5		29/3	19	27	15	9	16	19	14	9	3
Jun 2		10	29/2	12	24	15	20	5	27	25	7
Jul 14		22	14	6	11	8	19	31/7	23	28	26
Oct 3		4	27	8	22	10	14	13	28	13	21
Oct 31		4	16	21	15	27	6	25	13	2	9
Nov 5		26	16	3	26	29/7	18	22	25	17	11
Nov 11		14	7	23	17	5	31/1	2	25	17	11
Dec 24		12	2	11	7	18	24	4	14	10	20
Dec 26-Jan 1		21	9	30/6	24	28	6	21	26	31/2	8