Apple is gearing up to launch iOS 18, its major software update for iPhones this year. Packed with new features and improvements, the update is expected to roll out today, Monday, September 16.

Based on previous release patterns, iOS 18 will likely be available around 10:00 a.m. Pacific Time or 1:00 p.m. Eastern Time. To help iPhone users around the world know when they can expect the over-the-air update, we’ve put together a list of time zone conversions for various countries. Keep in mind that this isn’t a complete list, so it’s a good idea to double-check the exact time for your location. Also, there may be slight delays as Apple readies its servers for the update.