I know that with a double-entry tourist visa you have to make your second entry within 90 days of the day you apply for the visa, and that, therefore, it's best to apply immediately before you make your first entry.

But what restriction is there on when you enter and get the full 60/90 day use of a single entry tourist visa? Thanks for any infomation on this.

With a single-entry tourist visa you must make that entry not later than the expiration date shown on the visa. Such visa is usually valid for arrival in Thailand within three months, sometimes within 90 days, from the issue date of the visa.

If you are asking can the second entry be later than 90 days in the case of first entry being a bit after issue there is no change - all entries much be made prior to the expiration date on the visa itself ( In general, the validity of a visa is 3 months, but in some cases, visas may be issued to be valid for 6 months, 1 year or 3 years.).

Thanks for the responses. It sounds like a single entry tourist visa is stamped to be used within 90 days of applying. That's plenty of time for me. Thanks again.