Highlights time conflicts in Gmail, Outlook web, Handshake, and Eventbrite.
Users
11
+7 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
2
0 in 30 days
Store rank
#186K
#155K among extensions
Version
0.1.6
updated 14 Oct 2026
Users
monthly, 2 months
Latest, 17 Oct 2026:11 usersMove the mouse over the chart for any month
Ratings count
monthly, 2 months
Latest, 17 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 Check: Highlight Time Conflicts on Gmail, Handshake & Eventbrite
Built for those who stay uncluttered. For those who don't want to endlessly double check with their calendar. For folks scouring events across handshake or scheduling across timezones on Gmail & Outlook.
An extension that solves the annoying back & forth of checking your calendar for whether you're free for Gmail and event sites like Handshake, Eventbrite, etc. This would highlight times that fit your calendar, conflict with it and ones where you're partially busy across timezones and time formats like "midnight today" to "7:00 - 8:00 p.m. PST next week." Hover over the subtle highlighted box and you'll find out what event from your calendar conflicted, the read date, the interpreted timezone and date (In case, you don't think this works!!) and the freedom to change the timezone if it did not in fact, work...
All local. No AI. Your data stays yours.