Expressing Time

Worksheet Description

This worksheet will help students learn how convert frequently used unit measures of time in abbreviated form. Time abbreviations can make text more readable by reducing repetition and making it easier to follow. In effect it can improve efficiency, especially when dealing with time-sensitive information or data. Here are some common time-related abbreviations and their meanings:

1. AM / PM – Ante Meridiem (before midday) / Post Meridiem (after midday)
2. hr. – hour
3. min. – minute
4. sec. – second
5. ms – millisecond
6. ns – nanosecond
7. GMT – Greenwich Mean Time
8. UTC – Coordinated Universal Time
9. EST – Eastern Standard Time
10. PST – Pacific Standard Time