Time Zone Converter

Time Zone Converter Tool

The Time Zone Converter is a simple and interactive tool that allows users to convert a selected date and time from one time zone to another. This is especially helpful for scheduling meetings, coordinating across international teams, or tracking global events.

How It Works

Users start by selecting a date and time using the provided input fields. They then choose the "From Time Zone" (the time zone the original time is in) and the "To Time Zone" (the time zone they want to convert to) from the dropdowns. After clicking the "Calculate" button, the tool processes the inputs and displays the converted time.

Features

• Supports conversion across all major world time zones.
• Error validation for empty fields with user-friendly messages.
• Error messages automatically clear when the user updates their selection.
• Displays output in a human-readable format (e.g., "Sunday, October 12, 2025 at 6:00:00 PM").

Validation and Error Handling

Each input field is validated before conversion. If the user tries to proceed without selecting a date, time, or time zones, helpful error messages are shown below the respective fields in red. Once the user corrects the input, the error messages disappear automatically.

Technical Notes

• Uses the Intl.DateTimeFormat API for time zone conversion.
• Falls back to a limited list of time zones if full browser support is unavailable.
• Conversion logic creates a local date, adjusts it to the "From Time Zone", then re-formats it in the "To Time Zone".

Accessibility

The tool is keyboard-accessible and uses semantic HTML elements. Error messages are placed immediately below each field so that screen readers can easily associate them with the corresponding input.

Conclusion

Whether you're working with colleagues overseas or simply planning a call with someone in another country, this Time Zone Converter ensures accurate and quick time conversions across the globe.