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<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! -->