What time do you call firm/insurance unis to release you into clearing? And what time do you call unis for clearing vacancies (should I try ring them without clearing number?)?
Post-8am I believe is when UCAS Track updates so I'd presume then. Your best bet is to check your specific Uni's websites. Heads up though, you will need to get released from your firm/insurance choice Unis to be able to enter Clearing.
I'd recommend getting some sleep OP, if you want to gain a place via Clearing you'll need to be wide-awake