Across
5. The science of measuring time accurately.
7. A reference to non-daylight saving time.
8. Occurs twice a year when day and night are roughly equal in length.
9. The body’s natural sleep-wake cycle.
Down
1. To align in timing, like clocks during time changes.
2. Sleep _____: what many people experience after turning the clocks forward or getting a bad night’s sleep.
3. Divides the world map by the hour.
4. The Italian term for daylight saving time, which means “legal time.”
6. “Spring forward, ______.”
