If it is noon at one location what time is it on the other side of the earth?

Answer 1

When it is 12 00 UTC (Universal Coordinated Time) at the Greenwich Meridian then it is 24 00 at the International Date Line (as originally defined). In most cases the difference will be 12 hours ahead or behind, depending on where you are in relation to the meridians mentioned above. There are some places that vary from the standard time zone settings, and some places may or may not use Daylight Saving Time during parts of the year, so the answer will vary sometimes depending on your location.

Answer 2

That depends on the time of year, since Greenwich is on Greenwich Mean Time (GMT/UTC) during part of the year and on British Summer Time (BST/UTC+1) during part of the year. Some of the places on the opposite side of the world also observe Summer Time (Daylight Saving Time).

From the last Sunday of March until the day before the last Sunday of October, when it's 12:00 BST in England, it's...
... 00:00 SST (12 hrs. earlier) in American Samoa, Midway, Palmyra Atoll, Kingman Reef, and Jarvis Island.
... 00:00 NUT (12 hrs. earlier) in Niue.
... 00:00 PHOT (12 hrs. later) in the Phoenix Islands.
... 00:00 TKT (12 hrs. later) in Tokelau.
... 00:00 TOT (12 hrs. later) in Tonga.

From the last Sunday of March until the day before the first Sunday of April and from the last Sunday of September until the day before the last Sunday of October, when it's 12:00 BST in England, it's 00:00 NZDT (12 hrs. later) in New Zealand.

From the first Sunday of April until the day before the last Sunday of September, when it's 12:00 BST in England, it's 00:00 WSST (12 hrs. later) in Samoa.

From the last Sunday of October until the day before the last Sunday of March, when it's 12:00 GMT in England, it's...
... 00:00 BIT (12 hrs. earlier) on Howland and Baker Islands.
... 00:00 PETT (12 hrs. later) in Chukotka Autonomous Okrug and Kamchatka Krai, Russia.
... 00:00 WFT (12 hrs. later) in Wallis & Futuna.
... 00:00 TVT (12 hrs. later) in Tuvalu.
... 00:00 GILT (12 hrs. later) in the Gilbert Islands.
... 00:00 MHT (12 hrs. later) in the Marshall Islands.
... 00:00 NRT (12 hrs. later) in Nauru.
... 00:00 WAKT (12 hrs. later) on Wake Island.

From the last Sunday of October until the day before the first Sunday of November and from the third Sunday of January until the day before the last Sunday of March, when it's 12:00 GMT in England, it's 00:00 FJT (12 hrs. later) in Fiji.

Answer 3

If it is noon in the United States it is midnight on the other side of the world. This varies slightly with exact location.

Answer 4

That would be a half-rotation around the Earth, which is 180 degrees longitude either east or west.

Answer 5

It is 12 noon, or midday.

Answer 6

it would be midnight on the other side

Answer 7

Directly opposite.

Answer 8

no way guys

Answer 9

4

Answer 10

12