Each sesshin differs somewhat, and the exact schedule will depend almost entirely on which teacher is leading it and also somewhat on the length of the sesshin and a few other factors.  However, this is an example to give you an idea of what to expect on an average day at an  IZAUK sesshin.

06:30 Wake up bell (someone runs past all the rooms ringing a bell) – traditionally we keep silent until after breakfast
07:00 Zazen(40 mins), Kinhin(10 mins), Zazen(40mins)
08:30 Morning ceremony
08:45 Short walk
09:00 Breakfast
09:40 Samu (work – such as vegetables chopping and washing up), Coffee/Tea
11:00 Zazen/Kinhin/Zazen
12:30 Lunch
13:15 Samu (washing up), Coffee/Tea
13:30 Siesta
14:30 General Samu (cleaning, kitchen etc), also formal time for sewing rakusus and kesas
16:00 Zazen/kinhin/zazen – also possibly a Teisho (dharma talk) or Mondo (question/answer with the teacher)
18:30 Supper
19:15 Samu (washing up) and short break
20:30 Zazen/Kinhin/Zazen
21:45 herbal tea
22:30 lights out