Linked sliders
Move one city to any time of day and every other city updates instantly. It snaps to 15-minute steps, with a soft trackpad tick on every hour.
Small app. Thoughtful details.
Real daylight
Each slider is painted with that city's actual sky — sunrise, golden hour, dusk and night, calculated from where the sun really is. Quito and Helsinki look different, because they are.
Any place on Earth
Search by city, country or time zone code like PST. Not in the list? It looks it up on Apple Maps, down to the smallest town.
Never lose a day
A little +1d or −1d badge tells you when a city is already tomorrow — or still yesterday — compared with you.
Your order, your way
Drag cities into the order that makes sense to you. Your list is remembered, and one click on Now jumps back to the present.
Feels at home on macOS
Light and dark mode, 12- or 24-hour time, and an option to open at login. No Dock icon, no clutter — just a globe in your menu bar.
Get Timezone Converter
Timezone Converter is a small independent app, so the first time you open it macOS asks you to confirm you trust it. You only do this once.
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1
Download & drag
Open the downloaded file and drag Timezone Converter onto the Applications folder.
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2
Open it once
Open it from Applications. macOS will say it can't verify the app — click Done.
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3
Allow it
Go to System Settings → Privacy & Security, scroll down and click Open Anyway. Then look for the globe in your menu bar.
Free, and made with care
Timezone Converter is free for everyone. If it saves you a time zone headache, you can say thanks with a coffee — it keeps the app going.