Hour Atlas: World Clock

Hour Atlas keeps the people and places that matter in view. Save cities around the world, see their local time and daylight at a glance, then move one shared moment forward or backward to understand everyone’s day. The synchronized time grid makes overlap visible instead of making you calculate it. Made for everyday coordination: • Save and reorder the places that matter to you • See local time, date, daylight, and the offset from your current time zone • Move one moment and update every clock together • Compare up to several places in a synchronized hourly grid • Highlight 09:00–17:00 hours in each place • Find the next shared work-hour window automatically • Share a proposed time with local times for every saved place • See sunrise, sunset, day length, and upcoming daylight-saving changes • Rename a city for the person, team, or office it represents • Choose 12- or 24-hour time and optionally show seconds • Keep clocks close with small, medium, and large widgets • Add a medium or large Time Grid widget for instant comparison Hour Atlas works offline, needs no account, and is free to use. Saved places and preferences remain on your device and are shared only with the widgets you choose to add.