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Weeknummers in het jaar 1990
| Week | Begint (ma) | Eindigt (zo) | Even / oneven |
|---|
| Week 1 | 1 januari 1990 | 7 januari 1990 | oneven week |
| Week 2 | 8 januari 1990 | 14 januari 1990 | even week |
| Week 3 | 15 januari 1990 | 21 januari 1990 | oneven week |
| Week 4 | 22 januari 1990 | 28 januari 1990 | even week |
| Week 5 | 29 januari 1990 | 4 februari 1990 | oneven week |
| Week 6 | 5 februari 1990 | 11 februari 1990 | even week |
| Week 7 | 12 februari 1990 | 18 februari 1990 | oneven week |
| Week 8 | 19 februari 1990 | 25 februari 1990 | even week |
| Week 9 | 26 februari 1990 | 4 maart 1990 | oneven week |
| Week 10 | 5 maart 1990 | 11 maart 1990 | even week |
| Week 11 | 12 maart 1990 | 18 maart 1990 | oneven week |
| Week 12 | 19 maart 1990 | 25 maart 1990 | even week |
| Week 13 | 26 maart 1990 | 1 april 1990 | oneven week |
| Week 14 | 2 april 1990 | 8 april 1990 | even week |
| Week 15 | 9 april 1990 | 15 april 1990 | oneven week |
| Week 16 | 16 april 1990 | 22 april 1990 | even week |
| Week 17 | 23 april 1990 | 29 april 1990 | oneven week |
| Week 18 | 30 april 1990 | 6 mei 1990 | even week |
| Week 19 | 7 mei 1990 | 13 mei 1990 | oneven week |
| Week 20 | 14 mei 1990 | 20 mei 1990 | even week |
| Week 21 | 21 mei 1990 | 27 mei 1990 | oneven week |
| Week 22 | 28 mei 1990 | 3 juni 1990 | even week |
| Week 23 | 4 juni 1990 | 10 juni 1990 | oneven week |
| Week 24 | 11 juni 1990 | 17 juni 1990 | even week |
| Week 25 | 18 juni 1990 | 24 juni 1990 | oneven week |
| Week 26 | 25 juni 1990 | 1 juli 1990 | even week |
| Week 27 | 2 juli 1990 | 8 juli 1990 | oneven week |
| Week 28 | 9 juli 1990 | 15 juli 1990 | even week |
| Week 29 | 16 juli 1990 | 22 juli 1990 | oneven week |
| Week 30 | 23 juli 1990 | 29 juli 1990 | even week |
| Week 31 | 30 juli 1990 | 5 augustus 1990 | oneven week |
| Week 32 | 6 augustus 1990 | 12 augustus 1990 | even week |
| Week 33 | 13 augustus 1990 | 19 augustus 1990 | oneven week |
| Week 34 | 20 augustus 1990 | 26 augustus 1990 | even week |
| Week 35 | 27 augustus 1990 | 2 september 1990 | oneven week |
| Week 36 | 3 september 1990 | 9 september 1990 | even week |
| Week 37 | 10 september 1990 | 16 september 1990 | oneven week |
| Week 38 | 17 september 1990 | 23 september 1990 | even week |
| Week 39 | 24 september 1990 | 30 september 1990 | oneven week |
| Week 40 | 1 oktober 1990 | 7 oktober 1990 | even week |
| Week 41 | 8 oktober 1990 | 14 oktober 1990 | oneven week |
| Week 42 | 15 oktober 1990 | 21 oktober 1990 | even week |
| Week 43 | 22 oktober 1990 | 28 oktober 1990 | oneven week |
| Week 44 | 29 oktober 1990 | 4 november 1990 | even week |
| Week 45 | 5 november 1990 | 11 november 1990 | oneven week |
| Week 46 | 12 november 1990 | 18 november 1990 | even week |
| Week 47 | 19 november 1990 | 25 november 1990 | oneven week |
| Week 48 | 26 november 1990 | 2 december 1990 | even week |
| Week 49 | 3 december 1990 | 9 december 1990 | oneven week |
| Week 50 | 10 december 1990 | 16 december 1990 | even week |
| Week 51 | 17 december 1990 | 23 december 1990 | oneven week |
| Week 52 | 24 december 1990 | 30 december 1990 | even week |
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