UK Time / British Time

UK TIme - England, Wales, Scotland, Northern Ireland

British Summer Time 2010 - 2012

UK Time in the West European time zone (Western European Time Zone). Just like other European countries, Summer (Daylight-Saving) Time enforced in the UK, where the time forward one hour (GMT + 1). After the Summer, when UK Time shifted back one hour to Western European Time (WET) or (GMT).

watch method slide table below:

Formula to calculate the start of the European Summer Time ^[2]:

Sunday (31 − ((((5 * y) ÷ 4) + 4) mod 7)) March at 01:00 GMT

Formula to calculate the expiration European Summer Time ^[2]:

Sunday (31 − ((((5 * y) ÷ 4) + 1) mod 7)) October at 01:00 GMT

Note:

Both of the formula above is valid up to 2099.

y is year, and for non-negative a, a mod b is residual division after subtraction both operand to be integer.

The formula be obtained from European Summer Time data until 2015 :

Source :

[1] http://wwp.greenwich-mean-time.eu/time-zone/europe/uk/time/

[2] http://en.wikipedia.org/wiki/European_Summer_Time

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Daylight Saving Time - North America

USA - United States of America, Canada, Mexico

Daylight Saving Time Schedule USA 2007 - 2015

As prescribed: The Energy Policy Act of 2005

Rules

Begining   : Second week in March

Ending      : First week in November

Time         : 2 am local time (14:00 wib)

Starting from 2007, Daylight Saving Time (DST) was extended for a month and a schedule of countries the United States are adopting DST will be:

2 am (14:00 wib) 2nd week in March until 2 am (14:00 wib) first week in November.

Berikut tabelnya:

Compiled by :

Research Team