View source for Template:AgeMonths

<includeonly>{{#expr:
  12 * (
    {{{year2 | {{{4 | {{CURRENTYEAR}} }}} }}} -
    {{{year1 | {{{1 | {{CURRENTYEAR}} }}} }}}
  ) + (
    {{{month2 | {{{5 | {{CURRENTMONTH}} }}} }}} -
    {{{month1 | {{{2 | {{CURRENTMONTH}} }}} }}}
  ) +
  {{#ifexpr: {{{day2 | {{{6 | {{CURRENTDAY}} }}} }}} >= {{{day1 | {{{3 | {{CURRENTDAY}} }}} }}}
    | 0
    | -1
  }}
}}</includeonly><noinclude>