Time Zone Converter FAQ

5:00 PM IST (India Standard Time) is 6:30 AM EST (Eastern Standard Time). IST is 10 hours and 30 minutes ahead of EST. This means when it's evening in India, it's early morning of the same day on the US East Coast.

9:00 AM PST (Pacific Standard Time) is 10:30 PM IST (India Standard Time) on the same day. PST is 13 hours and 30 minutes behind IST. Perfect timing for morning meetings in California and evening calls in India.

IST (India Standard Time) is exactly 10 hours and 30 minutes ahead of EST (Eastern Standard Time). This time difference remains constant year-round since India doesn't observe daylight saving time, while EST/EDT changes do affect the difference during summer months.

When it's 12:00 PM (noon) UTC, here are the corresponding times in major zones:

For US-India meetings, two time windows work best: Early morning EST (8-10 AM) equals 6:30-8:30 PM IST, perfect for US morning and India evening. Alternatively, late EST (9-11 PM) equals 7:30-9:30 AM IST next day, good for India morning and US evening.

The optimal window for US-Europe business calls is 9 AM-12 PM EST, which equals 2-5 PM GMT or 3-6 PM CET. This provides overlapping business hours without requiring very early or very late participation from either side.

Use our advanced converter to compare multiple time zones simultaneously. Input your meeting time in your local zone and see the corresponding times for all participants. Always specify the time zone in meeting invitations and consider using UTC for global coordination.

In 2025, Daylight Saving Time in the US starts on Sunday, March 9 at 2:00 AM (clocks "spring forward" to 3:00 AM) and ends on Sunday, November 2 at 2:00 AM (clocks "fall back" to 1:00 AM). European DST starts March 30 and ends October 26.

Countries that don't observe DST include India, China, Japan, Russia, most African countries, Middle Eastern nations, and most tropical countries. In the US, Arizona (except Navajo Nation) and Hawaii don't observe DST.

DST changes the time difference between zones. For example, EST to IST is normally 10.5 hours difference, but during EDT (summer), it becomes 9.5 hours. Our converter automatically accounts for current DST rules to give you accurate conversions year-round.

Our converter uses the official IANA Time Zone Database, updated regularly for DST changes and government announcements. Conversions are accurate to the second with automatic DST transitions and leap second adjustments.

Yes! timezoneconverter.co is fully responsive and optimized for mobile devices. All features work seamlessly on smartphones and tablets with touch-friendly interface, fast loading, and offline capability for basic conversions.

Yes! Your selected time zones and preferences are automatically saved in your browser. You can also bookmark the page with your current settings for quick access to your most-used conversions.

Yes! timezoneconverter.co is completely free with no registration required. All features including world clock, multi-city planner, and conversion tools are available at no cost with no hidden fees.

Calculate your destination time zone difference using our converter. Start adjusting sleep schedule 3-5 days before travel: shift bedtime 1 hour earlier/later per day toward destination time. Stay hydrated during flight and get sunlight at destination to reset circadian rhythm.

London is 5 hours ahead of New York during standard time (EST to GMT). During daylight saving, the difference can vary: when both observe DST, London remains 5 hours ahead. Use our converter to check the exact difference for your travel dates.

Use our world clock feature to see multiple time zones simultaneously. Save your home time zone and destination zones in the converter. Schedule calls during overlapping reasonable hours - typically morning in one zone and evening in another works best for most relationships.

6:00 PM IST is 7:30 AM EST (same day). Perfect timing for India evening calls with USA morning meetings.

7:00 PM IST is 8:30 AM EST (same day). Ideal for India evening meetings with USA business hours.

8:00 PM IST is 9:30 AM EST (same day). Perfect for international team meetings between India and USA.

9:00 PM IST is 10:30 AM EST (same day). Good for India evening calls with USA mid-morning meetings.

10:00 PM IST is 11:30 AM EST (same day). Late evening in India corresponds to late morning in USA East Coast.

10:00 AM PST is 11:30 PM IST (same day). USA West Coast morning equals India late evening.

11:00 AM PST is 12:30 AM IST (next day). USA Pacific late morning equals India midnight.

12:00 PM PST (noon) is 1:30 AM IST (next day). USA Pacific noon equals India early morning hours.

2:00 PM EST is 11:00 AM PST (same day). Perfect for cross-USA meetings between East and West Coast.

3:00 PM EST is 12:00 PM PST (noon, same day). East Coast afternoon equals West Coast lunch time.

4:00 PM EST is 1:00 PM PST (same day). Ideal timing for USA domestic business meetings.

1:00 PM UTC is 8:00 AM EST (same day). UTC afternoon equals USA East Coast morning.

2:00 PM UTC is 6:00 AM PST (same day). UTC afternoon equals USA West Coast early morning.

3:00 PM UTC is 8:30 PM IST (same day). UTC afternoon equals India evening time.