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1 second
1000 milliseconds
1 minute
60 seconds
1 hour
60 minutes
1 day
24 hours
1 week
7 days
1 month
28,29, 30, 31 days
1 year
365 or 366 days
1 year
12 months
1 decade
10 years
1 century
100 years
1 millennium
1000 years
Note 
Flashcard (32)