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.).
The ACT Plus Writing exam includes an additional Writing section, which some colleges require for admission. To see if your college requires the Writing Test, click here. The exam typically takes 3 hours and 30 minutes to complete with breaks (or just over 4 hours with the optional writing test).