In the revised 2021-2023 school calendar, all form ones and grade four (4) learners will resume their term one of the 2021 academic year on 26th July, 2021. This shall be the opening date for the 2021 academic year that will run up to 10th March, 2022. See the full Ministry of Education revised school term dates for 2021 to 2023, below;
| Activity | Opening Dates | Closing Dates | Duration |
| Term 1 | 23/1/2023 | 21/4/2023 | 13 weeks |
| Half-term Break | 16/3/2023 | 19/3/2023 | 3 days |
| Holiday | 22/4/2023 | 7/5/2023 | 2 weeks |
| Term 2 | 8/5/2023 | 11/8/2023 | 14 weeks |
| Half-term Break | 29/6/2023 | 2/7/2023 | 3 days |
| Holiday | 12/8/2023 | 27/8/2023 | 2 weeks |
| Term 3 | 28/8/2023 | 27/10/2023 | 9 weeks |
| KCSE | 03/11/2023 | 24/11/2023 | 3 weeks |
| KCSE MARKING | 27/11/2023 | 15/12/2023 | 3 weeks |