Time Zone Converter
Time Zone Converter converts a time and date from one time zone to another, accounting for daylight saving time where applicable.
Enter values (time in HH:MM, date in YYYY-MM-DD):
Methodology Used in Time Zone Converter
The converter uses JavaScript’s Date and Intl.DateTimeFormat to compute the target time:
1. Parse source time and date into a Date object in the source time zone.
2. Convert to the target time zone using toLocaleString with the target time zone.
Key Steps:
- Combine source time and date into a UTC Date object.
- Format the Date object in the target time zone.
- Extract the converted time and date.
Handles daylight saving time automatically via the browser’s time zone database.
Example Calculation
Sample Input
Source Time = 14:30, Source Date = 2025-06-25, Source Time Zone = America/New_York, Target Time Zone = Asia/Tokyo
Step 1: Parse 2025-06-25 14:30 in America/New_York (EDT, UTC-4).
Step 2: Convert to UTC: 14:30 + 4 = 18:30 UTC.
Step 3: Convert to Asia/Tokyo (JST, UTC+9): 18:30 + 9 = 03:30 (next day).
Result: Target Time = 03:30, Target Date = 2025-06-26.