Time-zone rules
Named-zone calculations use the IANA data supplied through the browser’s internationalization engine.
IANA Time Zone Database ↗Transparent methods
TimeNivo methods and sources
Every important external dependency should be visible. TimeNivo separates browser calculations, standards references and optional live data so users can judge each result.
Open
Editorial links are not sponsored
Locale conventions
Date, number, language and regional formatting follows browser support built from Unicode locale data.
Unicode CLDR Project ↗Clock synchronization
The displayed clock estimates network delay against the TimeNivo edge clock; it is not a certified laboratory time service.
NIST Internet Time Service ↗Date notation
ISO 8601 is referenced for week numbering, machine-readable dates and unambiguous ordering.
ISO 8601 overview ↗Public holidays
Where the holiday tool loads live published dates, it names Nager.Date and shows an availability notice. Announcement-dependent dates should be confirmed with the relevant government.
Nager.Date ↗Review policy
TimeNivo states important limits beside the answer, updates generated pages when reviewed data changes, and never treats an external link as a guarantee.
Read the accuracy policy