Acton High School’s timetable is structured over a two-week period, with the first of those weeks labelled a ‘red’ week and the second labelled a ‘blue’ week.
The standard timetable below operates on all days except blue Tuesdays:
| 8.45 - 10.00 | Lesson 1 |
| 10.00 - 10.25 | Registration |
| 10.25 - 10.45 | Break |
| 10.45 - 12.00 | Lesson 2 |
| 12.00 - 13.15 | Lesson 3 |
| 13.15 - 13.55 | Lunch |
| 13.55 - 15.10 | Lesson 4 |
On blue Tuesdays only, the timetable below will operate:
| 08.45 - 09.55 | Lesson 1 |
| 09.55 - 10.20 | Registration |
| 10.20 - 10.40 | Break |
| 10.40 - 11.50 | Lesson 2 |
| 11.50 - 13.00 | Lesson 3 |
| 13.00 - 13.40 | Lunch |
| 13.40 - 14.50 | Lesson 4 |
Blue Tuesdays in the 2017–18 academic year are: 12th September, 26th September, 10th October, 31st October, 14th November, 28th November, 12th December, 9th January, 23rd January, 6th February, 27th February, 13th March, 27th March, 24th April, 22nd May, 12th June, 26th June and 10th July.