The Discordian calendar defines a week as having five days, named Sweetmorn, Boomtime, Pungenday, Prickle-Prickle, and Setting Orange (after the Five Elements). Chaos 1 is always Sweetmorn, Chaos 2 Boomtime, The Aftermath 73 Setting Orange, etc. St. Tib's Day is none of the five days of the week.
The Discordian calendar's year 0 (notionally the time of the Original Snub) is known in the Gregorian calendar as 1166 BC; alternatively, the Gregorian year 0 (notionally the birth of the Jewish mystic Yeshua ben Yosef) is known as 1166 YOLD in the Discordian calendar. The year known in the Gregorian calendar as 1995 is known as 3161 in the Discordian calendar.
Below is a table for converting between Discordian and Gregorian dates (cribbed from the Principia Discordia):
SM BT PD PP SO SM BT PD PP SO
-- -- -- -- -- -- -- -- -- --
Jan 1 2 3 4 5 1 2 3 4 5 Chs Jul 5 6 7 8 9 40 41 42 43 44 Cfn
6 7 8 9 10 6 7 8 9 10 10 11 12 13 14 45 46 47 48 49
11 12 13 14 15 11 12 13 14 15 15 16 17 18 19 50 51 52 53 54
16 17 18 19 20 16 17 18 19 20 20 21 22 23 24 55 56 57 58 59
21 22 23 24 25 21 22 23 24 25 25 26 27 28 29 60 61 62 63 64
26 27 28 29 30 26 27 28 29 30 30 31 1 2 3 65 66 67 68 69
31 1 2 3 4 31 32 33 34 35 Aug 4 5 6 7 8 70 71 72 73 1 Bcy
Feb 5 6 7 8 9 36 37 38 39 40 9 10 11 12 13 2 3 4 5 6
10 11 12 13 14 41 42 43 44 45 14 15 16 17 18 7 8 9 10 11
15 16 17 18 19 46 47 48 49 50 19 20 21 22 23 12 13 14 15 16
20 21 22 23 24 51 52 53 54 55 24 25 26 27 28 17 18 19 20 21
25 26 27 28* 1 56 57 58 59 60 29 30 31 1 2 22 23 24 25 26
Mar 2 3 4 5 6 61 62 63 64 65 Sep 3 4 5 6 7 27 28 29 30 31
7 8 9 10 11 66 67 68 69 70 8 9 10 11 12 32 33 34 35 36
12 13 14 15 16 71 72 73 1 2 Dsc 13 14 15 16 17 37 38 39 40 41
17 18 19 20 21 3 4 5 6 7 18 19 20 21 22 42 43 44 45 46
22 23 24 25 26 8 9 10 11 12 23 24 25 26 27 47 48 49 50 51
27 28 29 30 31 13 14 15 16 17 28 29 30 1 2 52 53 54 55 56
Apr 1 2 3 4 5 18 19 20 21 22 Oct 3 4 5 6 7 57 58 59 60 61
6 7 8 9 10 23 24 25 26 27 8 9 10 11 12 62 63 64 65 66
11 12 13 14 15 28 29 30 31 32 13 14 15 16 17 67 68 69 70 71
16 17 18 19 20 33 34 35 36 37 18 19 20 21 22 72 73 1 2 3 Afm
21 22 23 24 25 38 39 40 41 42 23 24 25 26 27 4 5 6 7 8
26 27 28 29 30 43 44 45 46 47 28 29 30 31 1 9 10 11 12 13
May 1 2 3 4 5 48 49 50 51 52 Nov 2 3 4 5 6 14 15 16 17 18
6 7 8 9 10 53 54 55 56 57 7 8 9 10 11 19 20 21 22 23
11 12 13 14 15 58 59 60 61 62 12 13 14 15 16 24 25 26 27 28
16 17 18 19 20 63 64 65 66 67 17 18 19 20 21 29 30 31 32 33
21 22 23 24 25 68 69 70 71 72 22 23 24 25 26 34 35 36 37 38
26 27 28 29 30 73 1 2 3 4 Cfn 27 28 29 30 1 39 40 41 42 43
31 1 2 3 4 5 6 7 8 9 Dec 2 3 4 5 6 44 45 46 47 48
Jun 5 6 7 8 9 10 11 12 13 14 7 8 9 10 11 49 50 51 52 53
10 11 12 13 14 15 16 17 18 19 12 13 14 15 16 54 55 56 57 58
15 16 17 18 19 20 21 22 23 24 17 18 19 20 21 59 60 61 62 63
20 21 22 23 24 25 26 27 28 29 22 23 24 25 26 64 65 66 67 68
25 26 27 28 29 30 31 32 33 34 27 28 29 30 31 69 70 71 72 73
30 1 2 3 4 35 36 37 38 39
I stole this page from someone in Australia, who stole most of it from the Principia Discordia; the Principia is in the public domain, and I didn't notice a copyright on the other person's page. I certainly don't own this stuff, and have copied it here mostly to save loading across the net.