テンプレート:User current age/years

{{#ifexpr:{{{month}}}<09

|{{#expr:2025-{{{year}}}}}
|{{#ifexpr:{{{month}}}=09
 |{{#ifexpr:{{{day}}}<=17
  |{{#expr:2025-{{{year}}}}}
  |{{#expr:2025-{{{year}}}-1}}
 }}
 |{{#expr:2025-{{{year}}}-1}}
}}

}}