PT Kontak Perkasa Futures Sudirman

Summer & Winter Time

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 (DaylightSaving) 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:

Daylight Saving Time starts

25 Mar

Summer begin clock

When local standard time is about to reach
Sunday, 25 March 2012, 01:00:00 clocks are turned forward 1 hour to
Sunday, 25 March 2012, 02:00:00 local daylight time instead

Seconds before and after the time change forward

Local Date

Local Time

DST UTC Offset Time Zone
Sunday, 25 March 2012 00:59:57 No UTC

GMT

00:59:58 No UTC

GMT

00:59:59 No UTC

GMT

01:00:00 → 02:00:00 +1h UTC+1h

BST

02:00:01 +1h UTC+1h

BST

02:00:02 +1h UTC+1h

BST

Daylight Saving Time ends

28 Oct

Summer end clock

When local daylight time is about to reach
Sunday, 28 October 2012, 02:00:00 clocks are turned backward 1 hour to
Sunday, 28 October 2012, 01:00:00 local standard time instead

Seconds before and after the time change backward

Local Date

Local Time

DST UTC Offset Time Zone
Sunday, 28 Oct 2012 01:59:57 +1h UTC+1h

BST

01:59:58 +1h UTC+1h

BST

01:59:59 +1h UTC+1h

BST

02:00:00 → 01:00:00 No UTC

GMT

01:00:01 No UTC

GMT

01:00:02 No UTC

GMT

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 :

Tahun

BST Mulai

BST Berakhir

2010

Sunday, 28 March Sunday, 31 October

2011

Sunday, 27 March Sunday, 30 October

2012

Sunday, 25 March Sunday, 28 October

2013

Sunday, 31 March Sunday, 27 October

2014

Sunday, 30 March Sunday, 26 October

2015

Sunday, 29 March Sunday, 25 October

 

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:

 Years

DST Starting from at 2 a.m.
(2nd Maret)

DST Ending at 2 a.m.
(2nd Week November)

2007

 March 11  November 4

2008

 March 9  November 2

2009

 March 8  November 1

2010

 March 14  November 7

2011

 March 13  November 6

2012

 March 11  November 4

2013

 March 10  November 3

2014

 March 9  November 2

2015

 March 8  November 1

Compiled by :

Research Team