# Method Calendar.YMD.YMD()->second_no()

Method second_no

  ```float`` fraction_no()`
  ```int`` hour_no()`
  ```int`` julian_day()`
  ```int`` leap_year()`
  ```int`` minute_no()`
  ```int`` month_day()`
  ```int`` month_no()`
  ```int`` second_no()`
  ```int`` utc_offset()`
  ```int`` week_day()`
  ```int`` week_no()`
  ```int`` year_day()`
  ```int`` year_no()`
  ```string`` month_name()`
  ```string`` month_shortname()`
  ```string`` month_day_name()`
  ```string`` week_day_name()`
  ```string`` week_day_shortname()`
  ```string`` week_name()`
  ```string`` year_name()`
  ```string`` tzname()`
  ```string`` tzname_iso()`
  ```int`` unix_time()`

Description

  Returns the unix time integer corresponding to the start of the time range object. (An unix time integer is UTC.)