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Clocker vs The Clock: catalog facts
Clocker	The Clock
Free Available from the Mac App Store.	Paid Free download available, with a purchase required for the full app.
macOS	macOS
Unlimited time zone clocks with custom labels Time scrubber for planning meetings across zones	Meeting planner slider that handles daylight saving Business hours and holiday tracking for contacts
macOS only Calendar features depend on Apple Calendar	macOS only Proprietary and paid
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.