View source for Template:Age in years, months, weeks and days

{{Age in years, months, weeks and days/display
 |years={{#expr: {{{year2 | {{CURRENTYEAR}} }}} - {{{year1 | {{{year | {{CURRENTYEAR}} }}} }}} - {{#ifexpr: {{{month2 | {{CURRENTMONTH}} }}} > {{{month1 | {{{month | {{CURRENTMONTH}} }}} }}}
  |0
  |{{#ifexpr: {{{month2 | {{CURRENTMONTH}} }}} < {{{month1 | {{{month | {{CURRENTMONTH}} }}} }}}
   |1
   |{{#ifexpr: {{{day2 | {{CURRENTDAY}} }}} >= {{{day1 | {{{day | {{CURRENTDAY}} }}} }}}
    |0
    |1
   }}
  }}
 }}}}
 |months={{#expr: {{{month2 | {{CURRENTMONTH}} }}} - {{{month1 | {{{month | {{CURRENTMONTH}} }}} }}} + {{#ifexpr: {{{day2 | {{CURRENTDAY}} }}} >= {{{day1 | {{{day | {{CURRENTDAY}} }}} }}}
  |{{#ifexpr: {{{month2 | {{CURRENTMONTH}} }}} >= {{{month1 | {{{month | {{CURRENTMONTH}} }}} }}}
   |0
   |12
  }}
  |{{#ifexpr: {{{month2 | {{CURRENTMONTH}} }}} > {{{month1 | {{{month | {{CURRENTMONTH}} }}} }}}
   |-1
   |11
  }}
 }}}}
 |weeks={{#ifexpr: ({{{day2 | {{CURRENTDAY}} }}} < {{{day1 | {{{day | {{CURRENTDAY}} }}} }}})
   |{{age in weeks
     |day1   = {{{day1 | {{{day | {{CURRENTDAY}} }}} }}}
     |month1 = {{#expr:(({{{month2 | {{CURRENTMONTH}} }}} + 10) mod 12) + 1}}
     |year1  = {{#expr:{{{year2 | {{CURRENTYEAR}} }}} - ({{{month2 | {{CURRENTMONTH}} }}} = 1)}}
     |day2   = {{{day2 | {{CURRENTDAY}} }}} 
     |month2 = {{{month2 | {{CURRENTMONTH}} }}}
     |year2  = {{{year2 | {{CURRENTYEAR}} }}} 
     }}
   |{{age in weeks
     |day1   = {{{day1 | {{{day | {{CURRENTDAY}} }}} }}}
     |month1 = {{{month2 | {{CURRENTMONTH}} }}}
     |year1  = {{{year2 | {{CURRENTYEAR}} }}}
     |day2   = {{{day2 | {{CURRENTDAY}} }}} 
     |month2 = {{{month2 | {{CURRENTMONTH}} }}}
     |year2  = {{{year2 | {{CURRENTYEAR}} }}} 
 }}}}
 |days={{#expr: ({{{day2 | {{CURRENTDAY}} }}} - {{{day1 | {{{day | {{CURRENTDAY}} }}} }}} + {{#ifexpr: {{{day2 | {{CURRENTDAY}} }}} >= {{{day1 | {{{day | {{CURRENTDAY}} }}} }}}
  |0
  |{{#switch: {{{month2 | {{CURRENTMONTH}} }}}
   |5|7|10|12 = 30
   |1|2|4|6|8|9|11 = 31
   |3={{#ifexpr: {{{year2 | {{CURRENTYEAR}} }}} mod 4 = 0
    |{{#ifexpr: ({{{year2 | {{CURRENTYEAR}} }}} mod 100 = 0) and  ({{{year2 | {{CURRENTYEAR}} }}} mod 400 != 0) 
     |28
     |29
     }}
    |28
   }}
  }}
 }}) mod 7}}
}}<noinclude>
{{documentation}}
</noinclude>