By understanding astronomy, we have been able to create ways to measure time.
Measurement of Time:
Which Unit of Time Came First? - Theory Building
How do time zones work? (My favourite maths enquiry!)
What if we had a base 10 clock or calendar?
What strategies can we use when measuring elapsed years?
Does the Year Zero Exist?
Does Time Exist or is it an Illusion?
Measuring Elapsed Time:
Measuring Elapsed Time: Student Created Formative
Formative / Summative - Measurement of Time