The units used on a daily basis are the second, minute and hour. In order to consider time frames greater than this, use days, weeks, months and years.
hour = minutes
School lessons typically last an hour
minute = seconds
Brushing your teeth should take two minutes
A heartbeat lasts a second
How many seconds are in hours and minutes?
Days and weeks are constant units of time. Use the following equations to convert between units:
day = hours
week = days
Unlike days and weeks, months and years can vary in how long they are:
January, March, May, July, August, October, December
April, June, September, November
*On leap years, February has days instead. This means that leap years last days, while non-leap years last days.
How many days are between March and September ?
Calculate how many days are left in March:
Calculate how many days make up the months between March and September:
Add the previous two values to the number of days in September:
Note: As the question asked 'between', you do not need to include September
Question: Are years the longest unit of time?
Answer: There are other units of time such as decades, centuries and millennia which are longer than years.
Question: When are leap years?
Answer: Leap years occur once every 4 years, and so they will be on the years 2024, 2028, and so on.
Question: What unit should be used for time?
Answer: The base unit of time is the second (s).