internal clock

noun

1

: a system in the body that controls when a person needs to sleep, eat, etc.

The long trip upset my internal clock and I had a hard time getting to sleep.

2

: a clock or timing device that is inside a computer

Examples of internal clock in a Sentence

Recent Examples on the Web

Spend time in natural daylight during the morning and afternoon to help regulate your internal clock. —Lindsay Curtis, Verywell Health, 31 Mar. 2026

While the tried-and-true rules of sleep hygiene are generally applicable to everyone, the specifics of what will improve one person’s sleep are quite individual and dictated by a person’s internal clock. —Helen Carefoot, Flow Space, 12 Mar. 2026

Moving bedtime earlier by 20 to 30 minutes for a few nights can help reset their internal clock and prevent that second wind. —ABC News, 10 Mar. 2026

Irregular sleep schedules disrupt the body’s internal clock the same way jet lag does. —Avery Newmark, AJC.com, 10 Mar. 2026

Rhymes for internal clock

• electroshock
• aftershock
• antiknock
• arawak
• hollyhock
• interlock
• isopach
• manioc
• shuttlecock
• tomahawk
• weathercock
• alcock