Calendar Timezone Sync icon

Calendar Timezone Sync

by eran@heffetz.com · Tools
Manifest V3 Free
View in Chrome Web Store Data as of 21 Oct 2026

Real-time cross-timezone synchronization overlay for Google Calendar

Users
9
0 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
2
0 in 30 days
Store rank
#208K
#174K among extensions
Version
1.1.0
updated 30 Apr 2026

Users

monthly, 7 months
049Mar 2026Jul 2026Oct 2026
Latest, 21 Oct 2026: 9 usersMove the mouse over the chart for any month

Ratings count

monthly, 7 months
012Mar 2026Jul 2026Oct 2026
Latest, 21 Oct 2026: 2 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Calendar Timezone Sync

Detailed Description SyncView Pro adds a real-time timezone overlay directly into Google Calendar. Simply hover over any time slot in Day or Week view to see the equivalent time in up to 3 additional timezones — displayed in a clean floating badge that follows your cursor. FEATURES - Dynamic sync line that follows your cursor across the calendar grid - Floating badge showing your local time + up to 3 target timezones - Color-coded timezone rows (green, orange, purple) for quick scanning - Works in both Day and Week views; auto-disables in Month and Schedule views - Searchable timezone picker with 400+ timezones and UTC offsets - Master ON/OFF toggle to quickly enable or disable the overlay - Fully DST-aware timezone conversions using the Intl API PERFECT FOR - Remote teams coordinating across time zones - Scheduling international meetings without mental math - Freelancers working with clients worldwide - Anyone who checks "what time is it there?" multiple times a day PRIVACY - All settings are stored locally in your browser (chrome.storage.local) - No data is collected, transmitted, or shared with any server - No analytics, no tracking, no accounts required - Open source — inspect every line of code HOW TO USE 1. Install the extension 2. Click the SyncView Pro icon in your toolbar 3. Toggle "Enable overlay" ON 4. Add up to 3 target timezones using the searchable dropdown 5. Open Google Calendar in Day or Week view 6. Hover over the time grid — the sync line and badge appear instantly

Growth

WindowUsersChangeRatingsRating
7 days+1+12.5%00.00
30 days0+0.0%00.00
6 months+7+350.0%+10.00

Version history

2 versions recorded
1.1.030 Apr 2026
1.0.018 Mar 2026

Details

Category
Tools
First seen
18 Mar 2026
Size
21 KB
Languages
en
Pricing
Free
Extension ID
mkjggfcmgfnlcckfdbaahommagmlbhmc

Permissions and risk

Moderate riskimpact 2, likelihood 2
Permissions
storage
Site access
https://calendar.google.com/*

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