Class Timezone Converter
Convert class times across time zones. Essential for online courses and international students.
How to Convert Class Times Between Time Zones
International students and those taking online courses from a different time zone often miss live classes because of miscalculating the time difference. This converter automatically accounts for DST (daylight saving time) and gives you the exact local time of your class in one click.
- Select the time zone the class is held in (for example, "New York" for a US-based online course).
- Pick the date and time the class is held in that time zone.
- Select the time zone you are currently in (your local time zone).
- The converted local time appears instantly, with the date adjusted if the time difference crosses midnight.
- Add the converted time to your calendar so you never miss a live lecture.
How Daylight Saving Time is Handled
The converter uses the official IANA time zone database, which includes all historical and future daylight saving time changes for every time zone in the world. Unlike manual calculation, it automatically adjusts for DST changes so you never get an offset wrong.
All conversions happen locally in your browser using the built-in JavaScript Intl API, which uses the same time zone data as your operating system and calendar apps, so the results are consistent with what you see in your phone's calendar.
FAQ
Does this account for daylight saving time?
Yes. It uses the official IANA time zone database, which includes all DST rules for every time zone. If the class time falls during DST in either time zone, the conversion automatically accounts for it.
What if I don't know the exact time zone name?
Use the popular timezones list — it includes all major university cities in the US, Canada, UK, Europe, and Asia, with their common labels (e.g. "New York (EST/EDT)") so you don't have to remember the IANA ID.
Can I convert times for past or future dates?
Yes. Pick any date in the date picker, and the conversion will use the time zone rules in effect on that date, even if DST starts or ends between now and then.
Is this accurate for all countries?
Yes. It uses the same global time zone database as all major operating systems and calendar apps, so it is accurate for every country and time zone in the world.
Can I save my frequent conversions?
No, but you can easily add the converted time to your calendar app directly. If you need to save multiple conversions, consider making a note in your calendar.