Painters tape is typically designed to be left on a painted surface for a relatively short period of time. The exact duration can vary depending on factors such as the type of tape used, the quality of the paint, and the conditions in which it was applied. However, as a general guideline, it is advisable to remove the painters tape within 24 to 48 hours after painting. Leaving it on for longer periods may lead to difficulties in removing the tape without damaging the paint or leaving behind residue. It is always recommended to check the specific instructions provided by the manufacturer of the painters tape being used.