January calendar| Day | January | Day of the year | Week number of year |
|---|
| Thursday | Jan 1, 2004 | 0 | 01 |
| Friday | Jan 2, 2004 | 1 | 01 |
| Saturday | Jan 3, 2004 | 2 | 01 |
| Sunday | Jan 4, 2004 | 3 | 01 |
| Monday | Jan 5, 2004 | 4 | 02 |
| Tuesday | Jan 6, 2004 | 5 | 02 |
| Wednesday | Jan 7, 2004 | 6 | 02 |
| Thursday | Jan 8, 2004 | 7 | 02 |
| Friday | Jan 9, 2004 | 8 | 02 |
| Saturday | Jan 10, 2004 | 9 | 02 |
| Sunday | Jan 11, 2004 | 10 | 02 |
| Monday | Jan 12, 2004 | 11 | 03 |
| Tuesday | Jan 13, 2004 | 12 | 03 |
| Wednesday | Jan 14, 2004 | 13 | 03 |
| Thursday | Jan 15, 2004 | 14 | 03 |
| Friday | Jan 16, 2004 | 15 | 03 |
| Saturday | Jan 17, 2004 | 16 | 03 |
| Sunday | Jan 18, 2004 | 17 | 03 |
| Monday | Jan 19, 2004 | 18 | 04 |
| Tuesday | Jan 20, 2004 | 19 | 04 |
| Wednesday | Jan 21, 2004 | 20 | 04 |
| Thursday | Jan 22, 2004 | 21 | 04 |
| Friday | Jan 23, 2004 | 22 | 04 |
| Saturday | Jan 24, 2004 | 23 | 04 |
| Sunday | Jan 25, 2004 | 24 | 04 |
| Monday | Jan 26, 2004 | 25 | 05 |
| Tuesday | Jan 27, 2004 | 26 | 05 |
| Wednesday | Jan 28, 2004 | 27 | 05 |
| Thursday | Jan 29, 2004 | 28 | 05 |
| Friday | Jan 30, 2004 | 29 | 05 |
| Saturday | Jan 31, 2004 | 30 | 05 |
