Units of time

In this lesson, we will learn:

• The different units of time: years, months, weeks, days, hours, minutes, and seconds
• The units of time for many years: decades, centuries, millennia
• How to convert between the different units of time

Notes:

• Units of time are intervals of time that measure duration
• The most common units of time that we see are: years, months, weeks, days, hours, minutes, and seconds

• Even longer intervals of time include: decades, centuries, and millennia

• When converting between different units of time:
• Multiply when changing from bigger to smaller time units
• Divide when changing from smaller to bigger time units
• Use the conversion list of equivalent times:

• Examples: