Perpetual calendar

year century

Julian calendar Gregorian calendar

0

700

1400 100

800

1500* 200

900 300

1000 400

1100 500

1200 600

1300 1500** 1600

2000 1700

2100 1800

2200 1900

2300

0 DC ED FE GF AG BA CB ... BA C E G

1 29 57 85 B C D E F G A F G B D F

2 30 58 86 A B C D E F G E F A C E

3 31 59 87 G A B C D E F D E G B D

4 32 60 88 FE GF AG BA CB DC ED CB DC FE AG CB

5 33 61 89 D E F G A B C A B D F A

6 34 62 90 C D E F G A B G A C E G

7 35 63 91 B C D E F G A F G B D F

8 36 64 92 AG BA CB DC ED FE GF ED FE AG CB ED

9 37 65 93 F G A B C D E C D F A C

10 38 66 94 E F G A B C D B C E G B

11 39 67 95 D E F G A B C A B D F A

12 40 68 96 CB DC ED FE GF AG BA GF AG CB ED GF

13 41 69 97 A B C D E F G E F A C E

14 42 70 98 G A B C D E F D E G B D

15 43 71 99 F G A B C D E C D F A C

16 44 72 ED FE GF AG BA CB DC ... CB ED GF BA

17 45 73 C D E F G A B ... A C E G

18 46 74 B C D E F G A ... G B D F

19 47 75 A B C D E F G ... F A C E

20 48 76 GF AG BA CB DC ED FE ... ED GF BA DC

21 49 77 E F G A B C D ... C E G B

22 50 78 D E F G A B C ... B D F A

23 51 79 C D E F G A B ... A C E G

24 52 80 BA CB DC ED FE GF AG ... GF BA DC FE

25 53 81 G A B C D E F ... E G B D

26 54 82 F G A B C D E C D F A C

27 55 83 E F G A B C D B C E G B

28 56 84 DC ED FE GF AG BA CB AG BA DC FE AG

month dominical letter

January, October A B C D E F G

February, March, November D E F G A B C

April, July G A B C D E F

May B C D E F G A

June E F G A B C D

August C D E F G A B

September, December F G A B C D E

1 8 15 22 29 Sunday Saturday Friday Thursday Wednesday Tuesday Monday

2 9 16 23 30 Monday Sunday Saturday Friday Thursday Wednesday Tuesday

3 10 17 24 31 Tuesday Monday Sunday Saturday Friday Thursday Wednesday

4 11 18 25 Wednesday Tuesday Monday Sunday Saturday Friday Thursday

5 12 19 26 Thursday Wednesday Tuesday Monday Sunday Saturday Friday

6 13 20 27 Friday Thursday Wednesday Tuesday Monday Sunday Saturday

7 14 21 28 Saturday Friday Thursday Wednesday Tuesday Monday Sunday

*On and before 1582, October 4 only. **On and after 1582, October 15 only.

Source: Smithsonian Physical Tables, 9th ed., rev. 1956.