Answer:
Longitudes determine time by dividing the Earth into 24 time zones, with each time zone being 15 degrees in width. Each time zone is one hour ahead of the previous one, so if a longitude is located in the Greenwich Mean Time (GMT) zone, the time there is considered the “standard” time.
The lengths of day and night are related to latitudes in that the closer to the equator a location is, the more even the lengths of day and night are. For example, near the equator, the length of day and night is almost always 12 hours each throughout the year. As you move further away from the equator, the length of day and night become more varied and the seasons become more pronounced. For example, in the northern hemisphere, the days become longer in the summer and shorter in the winter.