HighlightZone

About

HighlightZone makes it effortless to identify the timezone of any U.S. or Canadian phone number — directly from your browser. Whether you’re scheduling a call, messaging a client, or coordinating with remote teams, HighlightZone gives you instant clarity on where and when your contacts are.

Simply highlight any phone number on a webpage, and HighlightZone instantly detects the corresponding timezone and displays the current local time in a clean, minimal popup. No copy-pasting, no external tools — just quick, contextual insight.

Features
	•	🕒 Instantly detect the timezone and current local time for any U.S./Canadian phone number
	•	⚡ Works anywhere — highlight phone numbers on any webpage
	•	🔒 Privacy-first: No data collection or external requests
	•	🎨 Simple, lightweight, and intuitive interface
	•	🌙 Works in both light and dark modes
	•	🧩 Manifest V3 compliant and secure