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UTC Time vs Second Clock: catalog facts
UTC Time	Second Clock
Free Free on the App Store and as a direct download.	Free Free, with an App Store version available.
macOS	macOS
Shows UTC in the menu bar or a widget Copies time in different formats	Shows another time zone in the menu bar Supports custom prefix text
The standalone download does not receive automatic updates	Displays one additional clock; it does not show seconds or the date Requires macOS 15 or later for the current version
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 8, 2026	Official website Full listing and sources Checked October 8, 2026

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