Date & Time Guides
Understand date differences, calendar age and time-unit conversions with worked examples.
Date & Time
How to Count Days Between Two Dates
Counting days between dates starts with a choice: do you want the elapsed gap, or do you want to count both calendar dates? From September 1 to September 8, the elapsed difference is seven days. Counting every...
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Date & Time
How to Calculate Your Age on a Specific Date
Your age depends on both your birth date and the date you are calculating for. Subtracting birth years alone can overstate your age when your birthday has not happened yet. For an ordinary calendar check, compa...
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Date & Time
How to Convert Hours to Minutes Without Decimal Mistakes
To convert hours to minutes, multiply by 60. To convert minutes to hours, divide by 60. The common mistake is reading a decimal fraction of an hour as minutes: 1.5 hours means 90 minutes, not 1 hour and 5 minut...
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