Difference between revisions of "Template:Usdst"

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(New page: {{#vardefine:year|{{#time:Y|{{{1|{{CURRENTTIMESTAMP}}}}} }}}}{{#vardefine:remainder|{{#time:mdHi|{{{1|{{CURRENTTIMESTAMP}}}}} }}}}{{#ifexpr: {{#var:year}} <= 2006 | {{#ifexpr: ({{#var:rema...)
 
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{{#vardefine:year|{{#time:Y|{{{1|{{CURRENTTIMESTAMP}}}}} }}}}{{#vardefine:remainder|{{#time:mdHi|{{{1|{{CURRENTTIMESTAMP}}}}} }}}}{{#ifexpr: {{#var:year}} <= 2006
 
{{#vardefine:year|{{#time:Y|{{{1|{{CURRENTTIMESTAMP}}}}} }}}}{{#vardefine:remainder|{{#time:mdHi|{{{1|{{CURRENTTIMESTAMP}}}}} }}}}{{#ifexpr: {{#var:year}} <= 2006
| {{#ifexpr: ({{#var:remainder}} >= {{#expr:04{{weekday in month|{{#var:year}}|4|0|1}}0700}}) and ({{#var:remainder}} < {{#expr:10{{weekday in month|{{#var:year}}|10|0|-1}}0600}}) | 1 | 0}}
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| {{#expr: ({{#var:remainder}} >= {{#expr:04{{padleft:{{weekday in month|{{#var:year}}|4|0|1}}|2|0}}0700}}) and ({{#var:remainder}} < {{#expr:10{{padleft:{{weekday in month|{{#var:year}}|10|0|-1}}|2|0}}0600}}) }}
| {{#ifexpr: ({{#var:remainder}} >= {{#expr:03{{weekday in month|{{#var:year}}|3|0|2}}0700}}) and ({{#var:remainder}} < {{#expr:11{{weekday in month|{{#var:year}}|11|0|1}}0600}}) | 1 | 0}}
+
| {{#expr: ({{#var:remainder}} >= {{#expr:03{{padleft:{{weekday in month|{{#var:year}}|3|0|2}}|2|0}}0700}}) and ({{#var:remainder}} < {{#expr:11{{padleft:{{weekday in month|{{#var:year}}|11|0|1}}|2|0}}0600}}) }}
 
}}<noinclude>
 
}}<noinclude>
 
== Usage ==
 
== Usage ==

Revision as of 05:07, 3 July 2008

0

Usage

{{usdst}}

  • Returns 1 if the United States (specifically its Eastern Time Zone) are in Daylight Saving Time, 0 if not.
    • From 2007, Daylight Saving Time is observed in the United States from 02:00 local (07:00 UTC) on the second Sunday in March through 02:00 local (06:00 UTC) on the first Sunday in November.
  • For simplicity's sake, this template applies DST rules used from 1987-2006 to all years 1986 and prior.
  • This template currently extends the current (2007) DST rules to all years following. Further DST legislation in the United States may require updates to this template.