Changes
remove {{pp-template}}
<includeonly>{{#if:{{{1|}}}
|{{#switch:{{lc:{{{1}}}}}
|january|jan=1
|february|feb=2
|march|mar=3
|apr|april=4
|may=5
|june|jun=6
|july|jul=7
|august|aug=8
|september|sep|sept=9
|october|oct=10
|november|nov=11
|december|dec=12
|{{#ifexpr:{{{1}}}<0
|{{#ifexpr:(({{{1}}})round 0)!=({{{1}}})
|{{#expr:12-(((0.5-({{{1}}}))round 0)mod 12)}}
|{{#expr:12-(((11.5-({{{1}}}))round 0)mod 12)}}
}}
|{{#expr:(((10.5+{{{1}}})round 0)mod 12)+1}}
}}
}}
|Missing required parameter 1=''month''!
}}</includeonly><noinclude>
{{Documentation}}
<!-- Add categories and interwikis to the /doc subpage, not here! -->
</noinclude>
|{{#switch:{{lc:{{{1}}}}}
|january|jan=1
|february|feb=2
|march|mar=3
|apr|april=4
|may=5
|june|jun=6
|july|jul=7
|august|aug=8
|september|sep|sept=9
|october|oct=10
|november|nov=11
|december|dec=12
|{{#ifexpr:{{{1}}}<0
|{{#ifexpr:(({{{1}}})round 0)!=({{{1}}})
|{{#expr:12-(((0.5-({{{1}}}))round 0)mod 12)}}
|{{#expr:12-(((11.5-({{{1}}}))round 0)mod 12)}}
}}
|{{#expr:(((10.5+{{{1}}})round 0)mod 12)+1}}
}}
}}
|Missing required parameter 1=''month''!
}}</includeonly><noinclude>
{{Documentation}}
<!-- Add categories and interwikis to the /doc subpage, not here! -->
</noinclude>