The lead-in time for daily PrEP is 7 days. It’s suitable for both anal and vaginal or frontal sex.
Daily PrEP is best taken at the same time each day, so it becomes part of your routine, but a few hours late or early is fine.
You can take PrEP with or without food, and at any time of the day.
One of the benefits of taking daily PrEP is that you can miss a pill from time to time and still have adequate protection, however it is better if you take PrEP as prescribed and not miss any doses.