1. Purpose of the service
The service helps compare the time, date, time-zone difference, and daylight of major cities worldwide. It has no account requirement or paid feature.
2. Accuracy
Time calculations use your device’s IANA time-zone data and the selected date and time. Government policy changes or delayed device updates can cause differences. Confirm flights, financial transactions, and legal deadlines with an official source.
3. Daylight limitations
Map shading and the subsolar point are estimates and do not guarantee an exact sunrise or sunset. They do not replace professional astronomical, aviation, marine, or safety data.
4. User responsibilities
- Do not send excessive automated requests that interfere with the service.
- Recheck important local schedules with official time-zone or institutional guidance.
- Review the terms and policies of any external link you visit.
5. Service changes
The city list, map data, calculation methods, and service scope may change to improve accuracy or operations.