If it is 3 a.m. Wednesday in Vladivostok, Russia (132°E), what day and time is it in Moscow (37°E)?
You may not always have a time zone map available, but by remembering the relationship of 1 hour for every 15° of longitude, you can easily calculate the difference in time between places. Indicating and using the standard meridians to determine time zones, solve the following problems.
What will be an ideal response?
The controlling meridian for Moscow is 105° away from Vladivostok’s controlling meridian of 135°E (135° ? 30° = 105° difference). Since Earth rotates 15° per hour, Moscow is 7 hours earlier than Vladivostok (105° difference / 15° rotation per hour = 7 hours time difference), therefore if it is 3 a.m.Wednesday in Vladivostock, it is 8 p.m. Tuesday in Moscow.
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