tzdata-europe

const europeTimezones = require('tzdata-europe'); // The entire European time zone database is loaded as a JavaScript object. // Each key is an IANA time zone identifier (e.g., 'Europe/London'). // The value is an object containing details like name, transitions, and rules. // Access a specific time zone entry, for example, 'Europe/Paris' const parisData = europeTimezones['Europe/Paris']; if (parisData) { console.log('Successfully loaded data for Europe/Paris:'); console.log(`Zone Name: ${parisData.name}`); console.log(`Number of transitions: ${parisData.transitions.length}`); } else { console.log('Europe/Paris data not found (this should not happen for valid zones).'); } // You can iterate over all available zones in this package: console.log('\nTotal number of European zones in this package:', Object.keys(europeTimezones).length); // Example: Find a zone that uses a specific base offset (e.g., UTC+1) const zonesAtUTCPlusOne = Object.keys(europeTimezones).filter(zoneId => { const zone = europeTimezones[zoneId]; // This is a simplified check; actual offset calculation needs a full TZ library // For demonstration, let's just check if it has a common 'offset' property for simplicity. // (Note: The actual data structure is more complex and involves 'transitions'.) return zone.transitions && zone.transitions[0] && zone.transitions[0].offset === 3600; // Example: 3600 seconds for UTC+1 }); console.log('\nZones that potentially start at UTC+1 (simplified check):', zonesAtUTCPlusOne.slice(0, 5).join(', ') + (zonesAtUTCPlusOne.length > 5 ? '...' : ''));