April 1831
| CW | Montag | Dienstag | Mittwoch | Donnerstag | Freitag | Samstag | Sonntag |
|---|---|---|---|---|---|---|---|
| 13 | 28 | 29 | 30 | 31 | 01 | 02 | 03 |
| 14 | 04 | 05 | 06 | 07 | 08 | 09 | 10 |
| 15 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| 16 | 18 | 19 | 20 | 21 | 22 | 23 | 24 |
| 17 | 25 | 26 | 27 | 28 | 29 | 30 | 01 |
| CW | Montag | Dienstag | Mittwoch | Donnerstag | Freitag | Samstag | Sonntag |
|---|---|---|---|---|---|---|---|
| 13 | 28 | 29 | 30 | 31 | 01 | 02 | 03 |
| 14 | 04 | 05 | 06 | 07 | 08 | 09 | 10 |
| 15 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| 16 | 18 | 19 | 20 | 21 | 22 | 23 | 24 |
| 17 | 25 | 26 | 27 | 28 | 29 | 30 | 01 |