Time Zone Converter

Convert times between different time zones. Perfect for scheduling international meetings and coordinating across time zones.

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What It Does

Time Zone Converter converts times between different time zones worldwide. Select source and target time zones from major cities (New York, London, Tokyo, Sydney, Los Angeles, etc.) and instantly see converted times with time difference calculations. The converter handles daylight saving time (DST) automatically, shows current time in multiple time zones simultaneously, calculates time differences in hours and minutes, and supports date conversions when times cross midnight. It includes a live clock feature showing current time in popular time zones, handles historical dates with correct DST rules, and provides time zone abbreviations (EST, PST, GMT, UTC, etc.). Essential for scheduling international meetings, coordinating with remote teams, planning travel, calling friends abroad, understanding global business hours, and managing distributed work schedules.

Key Features:

  • Worldwide time zones: convert between any major city or time zone
  • Automatic DST handling: accounts for daylight saving time changes
  • Live clock: see current time in multiple time zones simultaneously
  • Time difference calculator: shows hours and minutes between zones
  • Date handling: correctly handles times crossing midnight and date boundaries
  • Multiple conversions: convert same time to multiple zones at once
  • Time zone abbreviations: displays EST, PST, GMT, UTC, etc.
  • Historical dates: supports past and future dates with correct DST rules

How To Use

Select source and target time zones, enter a date and time, and instantly see the converted time with time difference.

1

Select Time Zones

Choose the source time zone (where you are or the time you're converting from) from the dropdown menu. Options include major cities worldwide: Americas (New York, Los Angeles, Chicago, Toronto, Mexico City, São Paulo), Europe (London, Paris, Berlin, Rome, Madrid, Moscow), Asia (Tokyo, Beijing, Mumbai, Singapore, Dubai, Seoul), Oceania (Sydney, Melbourne, Auckland), and others. Then select the target time zone (where you want to know the time). You can also use UTC/GMT for universal reference.

2

Enter Date and Time

Input the date and time you want to convert. You can enter a specific date and time, or use "now" to convert the current time. The converter automatically accounts for daylight saving time (DST) based on the date—summer times show DST offsets (e.g., EDT for Eastern Daylight Time), winter times show standard time (e.g., EST for Eastern Standard Time). For meeting planning, enter your local time and see when it occurs in other zones.

3

View Converted Time and Difference

Calculator displays the converted time in the target time zone, shows the time difference (e.g., "5 hours ahead" or "3 hours behind"), displays time zone abbreviations (PST, EST, GMT, JST, etc.), and handles date changes when times cross midnight. If converting 2:00 PM New York time to Tokyo time, shows next day 3:00 AM (13 hours ahead, date changes). Use the live clock feature to see current times in multiple zones simultaneously—helpful for knowing "what time is it there right now" without manual conversion.

Pro Tips

  • •Daylight Saving Time (DST) automatically adjusts—summer shows daylight time, winter shows standard time
  • •Time differences change with DST—some zones don't observe DST (Arizona, most of Asia)
  • •When scheduling meetings, convert to all participants' time zones to avoid confusion
  • •Use UTC/GMT for universal reference when coordinating across many time zones
  • •Be aware of date line crossing—times can be next day or previous day in other zones
  • •Some countries have half-hour or quarter-hour offsets (India +5:30, Nepal +5:45)
  • •Check DST transition dates—times shift forward/backward on specific dates each year
  • •For recurring meetings, note that DST changes affect meeting times twice per year

Benefits

International Coordination: Schedule meetings and calls across time zones accurately
Remote Team Management: Coordinate with distributed teams worldwide
Travel Planning: Know local times at your destination before traveling
Business Hours: Understand when international offices are open
Communication: Call friends and family abroad at appropriate times
Event Planning: Coordinate global events and webinars
Work-Life Balance: Respect others' local times when communicating
Accuracy: Avoid confusion from manual time zone calculations

Use Cases

International Meeting Scheduling

Schedule meetings with participants across multiple time zones. Planning team meeting: Participants in New York (EST), London (GMT), Tokyo (JST), and Sydney (AEDT). Need to find time that works for all. Try 9:00 AM EST (New York): Converts to 2:00 PM GMT (London—afternoon, works), 11:00 PM JST previous day (Tokyo—late night, doesn't work), 1:00 AM AEDT next day (Sydney—very early morning, doesn't work). Try 2:00 PM EST (New York): Converts to 7:00 PM GMT (London—evening, acceptable), 4:00 AM JST next day (Tokyo—very early, doesn't work), 6:00 AM AEDT next day (Sydney—early morning, difficult). Optimal solution: 8:00 AM EST (New York morning): Converts to 1:00 PM GMT (London—lunch time, works), 10:00 PM JST (Tokyo—evening, acceptable), 12:00 AM AEDT next day (Sydney—midnight, challenging but possible). Or use rotating times: alternate meeting times so no one always has inconvenient hours. Use converter to: find overlapping business hours, account for DST changes (meeting time shifts when DST transitions occur), send calendar invites with correct times for each participant, and avoid scheduling during local holidays or off-hours. Essential for global collaboration.

Remote Work Coordination

Coordinate with remote team members in different time zones. Team member in San Francisco (PST), you in New York (EST), colleague in Berlin (CET), manager in Singapore (SGT). Daily standup planning: 9:00 AM PST (San Francisco): Converts to 12:00 PM EST (New York—lunch, works), 6:00 PM CET (Berlin—evening, acceptable), 1:00 AM SGT next day (Singapore—very early, doesn't work). Better: 10:00 AM PST: Converts to 1:00 PM EST (New York—afternoon, works), 7:00 PM CET (Berlin—evening, works), 2:00 AM SGT next day (Singapore—still early, but manager can join occasionally). Use converter to: understand team members' local times when messaging (don't expect immediate response at 2 AM their time), plan async communication windows, schedule one-on-ones at convenient times for both parties, respect work-life boundaries (avoid messages during off-hours), and coordinate deadlines with time zone awareness (deadline "end of day" means different times for each person). Live clock feature shows "what time is it there right now" without calculation—helpful for real-time coordination.

Travel Planning and Jet Lag Management

Plan travel and manage jet lag by understanding time zone changes. Traveling from New York to Tokyo: 14-hour flight departing 2:00 PM EST, arriving 5:00 PM JST next day. Local time in Tokyo when you arrive: 5:00 PM (evening). To adjust: stay awake until 10-11 PM Tokyo time, sleep through night, wake at normal time next day. Use converter to: calculate arrival times in destination time zone, plan sleep schedules before travel (gradually adjust sleep times toward destination zone), understand time differences for calling home (don't call family at 3 AM their time), coordinate with travel companions in different locations, and plan activities based on local business hours. Multi-city trip: New York → London → Dubai → Singapore. Converter shows: Each destination's current time, time differences from home, best times to call home, local business hours at each stop. Helps minimize jet lag and maintain communication with home base.

Global Business Operations

Manage business operations across international offices and markets. Company has offices: New York (headquarters), London, Tokyo, Sydney. Need to coordinate: Daily operations: New York opens 9:00 AM EST. Converter shows: London opens 2:00 PM GMT (5 hours ahead), Tokyo opens 11:00 PM JST previous day (14 hours ahead, already working), Sydney opens 1:00 AM AEDT next day (16 hours ahead, already working). Understanding: When New York starts work, Tokyo and Sydney are already mid-day. When New York ends work (5:00 PM EST), London is 10:00 PM (late evening), Tokyo is 7:00 AM next day (just starting), Sydney is 9:00 AM next day (morning). Use converter to: schedule global all-hands meetings, coordinate product launches (launch at 9:00 AM in each market's local time), understand customer support coverage (which office is open when), plan marketing campaigns (time social media posts for peak hours in each region), and coordinate with international suppliers/vendors. Critical for 24/7 business operations and global market presence.

Personal Communication Across Time Zones

Call friends and family abroad at appropriate times. Friend in London, you in Los Angeles. Want to call: Check current times: Los Angeles 3:00 PM PST, London 11:00 PM GMT (8 hours ahead). Too late to call—friend is likely sleeping. Better time: Los Angeles 10:00 AM PST, London 6:00 PM GMT (evening, good time to call). Or: Los Angeles 2:00 PM PST, London 10:00 PM GMT (late evening, acceptable if urgent). Use converter to: find overlapping convenient hours (your morning might be their evening, or vice versa), avoid calling during sleep hours (respect time differences), plan video calls with family (coordinate when everyone is awake), send messages with time awareness (they'll respond when it's daytime for them), and celebrate events together (New Year happens at different times—coordinate virtual celebrations). Live clock feature perfect for quick "what time is it there" checks before calling or messaging. Prevents awkward late-night calls and shows consideration for others' schedules.

Frequently Asked Questions

1 How does daylight saving time (DST) affect time zone conversions?
DST shifts clocks forward 1 hour in spring, back 1 hour in fall, changing time differences between zones. Converter automatically handles DST based on date. Example: New York to London. Winter (no DST): New York EST (UTC-5), London GMT (UTC+0), difference = 5 hours. New York 2:00 PM EST = London 7:00 PM GMT. Summer (DST active): New York EDT (UTC-4, shifted forward), London BST (UTC+1, also shifted), difference = 5 hours still (both shifted). New York 2:00 PM EDT = London 7:00 PM BST. Key points: DST dates vary by country (US: March-November, Europe: March-October, different dates), not all regions observe DST (Arizona, most of Asia don't), time differences can change when one zone enters/exits DST before another, and converter uses correct DST rules for historical and future dates. When scheduling recurring meetings: Meeting at 2:00 PM EST in winter becomes 2:00 PM EDT in summer—same local time, but UTC time shifts. International participants see time change relative to their zone. Best practice: Specify time zone explicitly in meeting invites, or use UTC for recurring events to avoid confusion.
2 What's the difference between UTC, GMT, and other time zone references?
UTC (Coordinated Universal Time) is the primary time standard; GMT (Greenwich Mean Time) is often used interchangeably but technically refers to solar time at Greenwich. In practice, UTC and GMT are the same for most purposes (no difference in modern usage). UTC/GMT serves as reference: All other time zones are expressed as UTC+/- hours. Example: EST = UTC-5, PST = UTC-8, JST = UTC+9. Why it matters: UTC provides universal reference point—no DST, no ambiguity. When coordinating across many zones, converting everything to UTC first simplifies calculations. Example coordination: Meeting at 2:00 PM EST. Convert to UTC: EST = UTC-5, so 2:00 PM EST = 7:00 PM UTC. Then convert UTC to other zones: London (GMT, same as UTC) = 7:00 PM, Tokyo (JST = UTC+9) = 4:00 AM next day, Sydney (AEDT = UTC+11) = 6:00 AM next day. Using UTC eliminates confusion from DST and local time variations. Other references: Zulu time (military term for UTC), ISO 8601 format uses UTC (e.g., "2024-01-15T14:30:00Z" where Z means UTC). For most users, time zone converter handles UTC automatically—just select cities and converter does the math.
3 How do I handle time zones when scheduling recurring meetings?
Recurring meetings face DST challenges—meeting time shifts when DST transitions occur. Strategies: Use local time with DST awareness: Schedule "2:00 PM Eastern Time" (not EST/EDT specifically). Calendar systems automatically adjust: 2:00 PM in winter = 2:00 PM EST, 2:00 PM in summer = 2:00 PM EDT. Same local time, but UTC time shifts. International participants: Their local time for meeting changes when DST transitions. Example: Weekly meeting 2:00 PM Eastern. Participant in London: Winter = 7:00 PM GMT, Summer = 7:00 PM BST (same local time for them, but different relative to Eastern). Participant in Tokyo: Winter = 4:00 AM JST next day, Summer = 3:00 AM JST next day (shifts 1 hour when Eastern enters/exits DST). Best practices: Specify time zone in meeting title ("Team Standup - 2:00 PM ET"), use calendar system that handles DST automatically (Google Calendar, Outlook), send reminders with current converted times before each meeting, and consider using UTC for truly global recurring events (avoids DST issues). For critical meetings: Manually verify times around DST transition dates (March and November in US, different dates elsewhere). Converter helps verify correct times for any date.
4 Why do some time zones have half-hour or quarter-hour offsets?
Some regions use offsets that aren't whole hours for historical, political, or geographical reasons. Half-hour offsets: India (IST = UTC+5:30), Iran (IRST = UTC+3:30), Afghanistan (AFT = UTC+4:30), Newfoundland (NST = UTC-3:30). Quarter-hour offsets: Nepal (NPT = UTC+5:45), Chatham Islands New Zealand (CHAST = UTC+12:45). Why they exist: Historical reasons (India chose +5:30 to align with solar time), political decisions (some countries want unique time), geographical factors (regions spanning ideal time zone boundaries). Converter handles these correctly. Example: Converting 2:00 PM EST (New York) to IST (India): EST = UTC-5, so 2:00 PM EST = 7:00 PM UTC. IST = UTC+5:30, so 7:00 PM UTC = 12:30 AM IST next day (not midnight, but 12:30 AM). Important for: Scheduling with teams in these regions (India is very common for remote work), understanding why times don't align to whole hours, and accurate planning for business or travel. Most modern converters and calendar systems handle these offsets automatically, but awareness helps when manually calculating or troubleshooting.
5 How do I convert times for countries that don't observe daylight saving time?
Countries without DST maintain constant offset year-round, making conversion simpler but creating shifting differences with DST-observing zones. No-DST countries: Most of Asia (Japan, China, India, Singapore, etc.), Most of Africa, Arizona (US state), Hawaii (US state), and others. Example: Converting between Tokyo (no DST) and New York (has DST). Winter: Tokyo JST (UTC+9), New York EST (UTC-5), difference = 14 hours constant. New York 2:00 PM EST = Tokyo 4:00 AM JST next day. Summer: Tokyo still JST (UTC+9, no change), New York EDT (UTC-4, shifted forward), difference = 13 hours (changed from 14). New York 2:00 PM EDT = Tokyo 3:00 AM JST next day (1 hour earlier than winter due to DST shift). Key point: Time difference changes when the DST-observing zone enters/exits DST, even though no-DST zone stays constant. For scheduling: No-DST zones provide stable reference—their local time doesn't shift. DST-observing zones see meeting times shift relative to no-DST zones. Best practice: When one participant is in no-DST zone, use their local time as anchor for recurring meetings (avoids one side of shift). Converter automatically handles these differences—just select zones and dates, converter accounts for DST status of each zone.

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