====== Time shift summer/winter time  ======

{{:en:mervis-ide:35-help:getdstoffset.png}}

===== Function name =====

=====  =====

GETDSTOFFSET

===== ST call  =====

<code st-iec>
PROGRAM GETDSTOFFSET_DEMO
  VAR
     TIME_OUT: TIME;
 END_VAR
 TIME_OUT:=GETDSTOFFSET(T:=GETLOCALTIME());
END_PROGRAM
</code>

===== Description =====

The block returns the time difference between standard zone time and zone daylight saving time. The output is 0 h at winter time, and 1 h at summer time for central Europe. The change takes place at midnight.

===== Inputs =====

|Input|Type|Description        |
|T    |DT  |Input date and time|

===== Outputs =====

|Output|Type|Description |
|=>    |TIME|Output value|

===== Application example  =====

{{:en:mervis-ide:35-help:getdstoffset_example.png}}