Playing fair here, got an answer:

Jun 2, 22:52 +08

Thank you for contacting Bybit.

Bybit will process withdrawal 3 times a day at 0800,1600, 2400 (UTC).

Withdrawal cut-off time will be 30 minutes before the scheduled withdrawal processing time. For example, all requests made before 0730 will be processed at 0800. Requests made after 0730 will be processed at 1600. Please expect your withdrawal to be credited in your wallet within 1-2 hours due to the manual process.

For your withdrawal, it will be processed in another 1-2 hours at the next payment cycle. Thanks.