Originally Posted by
lincolnjkc
Also note that as of May 1st OTPs are restricted to 3 hours before departure (if you try accessing a lounge via a OTP outside of that timeframe AIMS will offer to sell a membership and declare that the pass isn't valid which may throw off some club agents who don't see the scenario often.
Also note that this time limit is only for originating passengers. If you have, for example, a five-hour layover/connection between flights, you can use an OTP to enter a UC at any time--provided there is space available.