The time zones of the world are set according to Greenwich Mean Time, from the Greenwich Observatory in England. If it is noon in Japan, it is 0300 or 3 o'clock in the morning in Greenwich.
CST is UTC-5, this means it is five hours behind GMT/UTC. Therefore, 12 noon in CST is 5pm in GMT.
Singapore's time is 8 hours ahead of GMT (GMT +8); noon in greenwich would equate to 8pm in Singapore.
12 noon
Japan is GMT+9.
time ball
1 hour
AM = Ante Meridiem (Latin for "before noon") PM = Post Meridiem (Latin for "after noon") GMT = Greenwich Mean Time, the standard time in London at 0° longitude
The time zone for Japan is GMT + 9 hours.
It would be 11 AM. Ottawa is on the GMT-5 time zone, while Mexico City is on the GMT-6 time zone.
England right now (April 2008) is using the Summer Time Zone, not GMT. GMT is 3 hours earlier than Kenya time. So if it is noon in Kenya, it is 9 am by GMT time.
Japan Standard Time (JST) UTC/(GMT) +9
17:00 GMT is 11:00 AM Central Standard Time (CST) or 12 Noon Central Daylight Time (CDT).