UPSKILL MATH PLUS
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Learn moreOrdinary year:
1 year = 12 months
1 year = 52 weeks + 1 day
1 year = 365 days
1 month = 30 days or 31 days
1 month = 4 weeks + few days
1 week = 7 days
Ordinary February month has 28 days.
Leap year:
1 year = 366 days
1 day is added in the month of February.
Important!
In a Leap year, February month has 29 days.
Leap year comes once in every four years.
Identifying a leap year:
A year which is divisible by 4 is a leap year.
A century which is divisible by 400 is a leap year.
Periods of time:
10 years = 1 decade
100 years = 1 century
1000 years = 1 millennium
Jubilee:
A jubilee is a particular anniversary of an event.
25^{\text{th}} - Silver Jubilee
40^{\text{th}} - Ruby Jubilee
50^{\text{th}} - Golden Jubilee
60^{\text{th}} - Diamond Jubilee
65^{\text{th}} - Sapphire Jubilee
70^{\text{th}} - Platinum Jubilee
Important!
The study of measurement of time is called as "HOROLOGY".
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