Template:User current age/years
{{#ifexpr:{{{month}}}<{{CURRENTMONTH}}
|{{#expr:{{CURRENTYEAR}}-{{{year}}}}}
|{{#ifexpr:{{{month}}}={{CURRENTMONTH}}
|{{#ifexpr:{{{day}}}<={{CURRENTDAY}}
|{{#expr:{{CURRENTYEAR}}-{{{year}}}}}
|{{#expr:{{CURRENTYEAR}}-{{{year}}}-1}}
}}
|{{#expr:{{CURRENTYEAR}}-{{{year}}}-1}}
}}
}}