Please Help Work hours issues

[London999]

If anyone is good with HR employment hours then I need some advice please.
I work for a local authority on a 4 on 4 off shift 2 days 2 night 12 hour shifts. I’m finding this extremely tiring and have requested to the manager that I want to drop down to 8 hour shifts.
This has been accepted but the problem is nobody can work out how this will work going forward. I want to stay on the same shift patten of 4 on 4 off but will need to work the 36 hours a week required by the council. Can the 36 hours fit into the 4 on 4 shift patten and how many hours would a shift be to make up the 36
Hours required over a week?
Happy to answer any questions
Thanks in advance

If you want to work fewer hours per shift you can’t stick with 4 on on 4 off because you won’t fit 36 hours in a week. Working 12 hours a shift means you usually do 48 hours a week, presumably, but working 8 hours a shift means you’ll do 32, which isn’t enough if they need you to do at least 36 hours.

Doing 9 hours would work fine though.

I can’t see how you can work 6 x 8 hour pattens over 4 days, unless you only have 8 hours between shifts which breaches WTR. You could do 8 hour pattern over 6 days:
2 x days (06:00 to 14:00 )
2 x nights (18:00 to 02:00)

2 x days (10:00 to 18:00)
2 x days off
2 x nights (22:00 to 06:00)
2 x days (06:00 to 14:00)
2 x nights (18:00 to 02:00)
2 x days off.

Someone who does shift planning regularly will probably be able to advise other options.

You can’t do eight hour shifts four on four off and make up 36 hours, because 8 x 4 does not make 36.

If you need to do at least 36 hours per week, on a four on four off shift pattern then your shifts would need to be just over ten hours long.

Calculated as:

36 x 52 = 1872 hours per year.

You work four on four off so you work on half of the days in the year = 365/2 = 182.5 days. So 1872 hours over 182.5 shifts = 10.25 hours per shift.