World Time Zones Map

(Interactive map of time zones include daylight saving time)

Flash Map of World Time Zones displays current local time in any place around the world right now.

World Time Clock & Map is an indispensable utility for everyone who deals with people abroad or anybody who is keen on knowing what time it is further than locally.

This advanced Flash application is very helpful for travelers who need to know time difference around the world and want to be aware of world time zones they are traveling to, as well as for businesses which are located in different time zones and want to know current local time of their partners and customers.

Time Zones

Earth is split up into a number of time zones. Most time zones are exactly one hour apart, and by convention compute their local time as an offset from UTC or GMT. In many locations these offsets vary twice yearly due to daylight saving time transitions.

A time zone is a region on Earth, more or less bounded by lines of longitude, that has a uniform, legally mandated standard time, usually referred to as the local time. By convention, the 24 main time zones on Earth compute their local time as an offset from UTC, each time zone boundary being ostensibly 15 degrees east or west of the preceding one. The reference point for UTC is the Greenwich Meridian (the Prime Meridian), which has a longitude of 0°. Local time is UTC plus the current time zone offset for the location in question. A corresponding one hour decrease relative to UTC occurs every 15° heading westward from the western boundary of the UTC time zone, up to the International Date Line.

Daylight Saving Time

Daylight Saving Time (DST) also known as "summer time" is the practice of temporarily advancing clocks so that afternoons have more daylight and mornings have less. Typically clocks are adjusted forward one hour near the start of spring and are adjusted backward in autumn.

In a typical case where a one-hour shift occurs at 02:00 local time, in spring the clock jumps forward from 02:00 standard time to 03:00 DST and that day has 23 hours, whereas in autumn the clock jumps backward from 02:00 DST to 01:00 standard time, repeating that hour, and that day has 25 hours. A digital display of local time does not read 02:00 exactly at the shift, but instead jumps from 01:59:59.9 either forward to 03:00:00.0 or backward to 01:00:00.0. In this example, a location observing UTC+2 during standard time is at UTC+3 during DST; conversely, a location at UTC−5 during standard time is at UTC−4 during DST. Clock shifts are usually scheduled near a weekend midnight to lessen disruption to weekday schedules.