British CamModels, when is payday in the UK?

[Suemmy]

Here in the USA, larger companies pay us either weekly or bi-weekly, and it's almost always on a Friday.

If we're employed with the government or military, we're paid on every 1st & 15th of the month.

In the UK, is it the same weekly or bi-weekly?
Paid on Friday?
Military on the 1st & 15th?

I've tried to Google UK Pay Schedule, but no results with clear cut answers.

Thanks for your help!