Step 7: Since the location is at 90°W, it is behind UTC, so the time offset is UTC-6.
Latitude and Longitude – Understanding how latitude and longitude determine geographical locations and their relation to time zones.
Time Zones – Knowledge of how degrees of longitude correspond to time offsets from Coordinated Universal Time (UTC).
UTC Offset Calculation – Calculating the time offset based on the longitude value, where each 15° of longitude corresponds to a 1-hour difference from UTC.