Where can I download 'Daylight Saving Time' for all regions in the world for specific year like 2015?
timeanddate.com provides it but it's not free.
This is a sample data provided by timeanddate.com
<?xml version="1.0" encoding="UTF-8"?>
<data version="2">
<dstlist>
<dstentry>
<region>
<country id="al">Republic of Albania</country>
<desc>All locations</desc>
<biggestplace>Tirana</biggestplace>
<locations>
<location id="284" name="Tirana"/>
</locations>
</region>
<stdtimezone offset="+01:00">
<zoneabb>CET</zoneabb>
<zonename>Central European Time</zonename>
<zoneoffset>3600</zoneoffset>
<zonedst>0</zonedst>
<zonetotaloffset>3600</zonetotaloffset>
</stdtimezone>
<dsttimezone offset="+02:00">
<zoneabb>CEST</zoneabb>
<zonename>Central European Summer Time</zonename>
<zoneoffset>3600</zoneoffset>
<zonedst>3600</zonedst>
<zonetotaloffset>7200</zonetotaloffset>
</dsttimezone>
<dststart>2011-03-27</dststart>
<dstend>2011-10-30</dstend>
</dstentry>
</dstlist>
</data>
As you can see, we have
<dststart>2011-03-27</dststart>
<dstend>2011-10-30</dstend>
Which shows start and end time of daylight saving for 2011.