- published: 13 Jul 2015
- views: 54394
A time zone is a region on Earth that has a uniform standard time for legal, commercial, and social purposes. It is convenient for areas in close commercial or other communication to keep the same time, so time zones tend to follow the boundaries of countries and their subdivisions.
Most of the 40 time zones on land are offset from Coordinated Universal Time (UTC) by a whole number of hours (UTC−12 to UTC+14), but a few are offset by 30 or 45 minutes. Some higher latitude countries use daylight saving time for part of the year, typically by changing clocks by an hour. Many land time zones are skewed toward the west of the corresponding nautical time zones. This also creates a permanent daylight saving time effect.
Before the invention of clocks, people marked the time of day with apparent solar time (or "true" solar time) – for example, the time on a sundial – which was typically different for every settlement.
When well-regulated mechanical clocks became widespread in the early 19th century,[citation needed] each city began to use some local mean solar time. Apparent and mean solar time can differ by up to around 15 minutes (as described by the equation of time) due to the non-circular shape of the Earth's orbit around the sun. Mean solar time has days of equal length, and the difference between the two averages to zero after a year.
TIMEZONE ARCADE: BALLOON BUSTER WIN 2,000 TICKETS!!!!
Understanding Time Zones
TIMEZONE ARCADE: THOUSAND TICKET WINS!!! (BOWLING, STACKER, TREASURE QUEST, CLAW MACHINE)
Time Zone - World Destruction
Time Zone - World Destruction (1984)
Bibi Zhou 周筆暢 x Epik High -《TIME ZONE》- 2015迷你數字專輯《翻白眼II》
My trip to Australia - part 16 (TimeZone Arcade)
The Problem with Time & Timezones - Computerphile
curang main timezone,, biar banyak dapat point
Time Zones
Saba - Timezone/Whip (areyoudown?) (Official Video @HOTC_TV)
Geography Lesson Idea - Time Zones
TIMEZONE CLAW MACHINE: RIGGED! BUNCH OF PLAYS = ZERO WINS + STACKER
Time Zones & How They Work