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you get your peridos 2 every 10 years
every 2 years after their gestation period
To be on A contract for a specified period example 3 years.
Every four years. This period of time was called an "olympiad".
Every two years or biannually
A synonym for every five years is quinquennial: as an adjective describes something that happens every five years or that lasts for five years; the noun means the fifth anniversary or a period of five years.
census is conducted after every 10 years
For example, something that happened in 1400, 1600 and 1800 happened every two hundred years.
the ancient Olympics games were held once in 4 years. the time period was called as Olympiads & was only held in Olympia in Greece
It is spelled right (biennial) and means something that happens every two years. Example- a flower blooming every two years.
It's either 31,556,160 minutes or 31,557,600 minutes depending on what 60-year period you are measuring. For example, the period from 1 January 2001 @ 00:00:00 through 1 January 2061 @ 00:00:00 is 31,557,600 minutes, and the period from 1 January 2061 @ 00:00:00 through 1 January 2121 @ 00:00:00 is 31,556,160 minutes. The second period specified is one day shorter than the first period because the first period has 15 leap year days (every four years from 2004 through 2060), and the second period has 14 leap year days (every four years from 2064 through 2096 and every four years from 2104 through 2120). This answer assumes that the time zone and the Daylight Saving Time or Summer Time status are the same at the beginning and end of the period.
A period of ten years is called a decade. Sometimes a decade is used more specifically, to refer to a ten-year period that starts with a year that ends in zero. For example, "the sixties" or "the 1960s" refers to the years 1960-1969.