After you remove or transfer your SIM card, insert the tray completely and in the same orientation that you removed it (it will fit only one way). Use only the SIM tray that came with your device. For example, a SIM tray from an iPhone 6s will not fit in an iPhone 7.
Total test time is 205 minutes if taking the Writing/essay. Without the essay, the ACT is 155 minutes actual test time. Individual sections are always in the order of: English (45 mins.); Math (60 mins.); Reading (35 mins.); Science (35 mins.); and, optional Essay (30 mins.).
(Without the writing section, it is 2 hours and 55 minutes.) With short breaks given during the test, the total elapsed time for the ACT (with writing) is about 3 hours 45 minutes, and the total time without the writing section is about 3 hours 10 minutes.