The world has 24 major time zones. UTC (Coordinated Universal Time) is the global standard. Sri Lanka is UTC+5:30, India UTC+5:30, UAE UTC+4, UK UTC+0 (UTC+1 in summer), USA Eastern UTC-5 (UTC-4 in summer), Australia Eastern UTC+10. Use this converter to instantly find what time it is anywhere in the world.
📂 Daily Life
🌍 Time Zone Converter
Convert time between any two time zones instantly. Find out what time it is in any city worldwide. Perfect for international meetings, calls, travel planning, and remote work.
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✨ Your Result
🦉Owl's Explanation
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Fill in the values above and click Calculate ✨
✅ Trusted Tool
The 365tool.net Time Zone Converter uses standard UTC offset calculations. Note: daylight saving time is not automatically applied — check current DST status for accuracy during summer months. Free, no sign-up needed.
🤔 How Does This Work?
The Time Zone Converter converts time using UTC offsets:
Convert input time to UTC: time - from_offset
Convert UTC to target: UTC + to_offset
Handle day overflow (past midnight or before midnight)
Show difference in hours between zones
❓ Frequently Asked Questions
What is UTC?▼
UTC (Coordinated Universal Time) is the world's primary time standard. All other time zones are expressed as UTC+ or UTC-. It does not observe daylight saving time. UTC replaced GMT (Greenwich Mean Time) in 1960 but they are nearly identical. Pilots, programmers, and scientists use UTC to avoid confusion.
What is daylight saving time?▼
DST moves clocks forward 1 hour in summer to extend evening daylight. Used in USA, Europe, Australia (reversed seasons). NOT used in Sri Lanka, India, UAE, China, Japan. During DST: USA Eastern is UTC-4 (not -5), UK is UTC+1 (not 0). Our converter uses standard (non-DST) offsets.
What time zones are used in Sri Lanka?▼
Sri Lanka Standard Time (SLST) = UTC+5:30. Sri Lanka is the same time as India (IST). There is no daylight saving time in Sri Lanka. Sri Lanka shares its UTC+5:30 zone with India — unusual because most zones are whole hours.
How do I plan an international meeting?▼
Find a time that works for everyone. A good time for Sri Lanka + UAE + UK meeting: 10 AM Sri Lanka = 8:30 AM UAE = 4:30 AM UK (too early!). Try: 3 PM Sri Lanka = 1:30 PM UAE = 9:30 AM UK. Use our converter to find overlapping business hours.
Why does India have a half-hour time zone?▼
India (UTC+5:30) chose a half-hour offset to be a single time zone for the entire country while avoiding being too far from solar noon at the extremes. Similarly, Sri Lanka, Iran (UTC+3:30), Afghanistan (UTC+4:30), and Nepal (UTC+5:45) use fractional offsets.
UTC (Coordinated Universal Time) is the world's primary time standard. All other time zones are expressed as UTC+ or UTC-. It does not observe daylight saving time. UTC replaced GMT (Greenwich Mean Time) in 1960 but they are nearly identical. Pilots, programmers, and scientists use UTC to avoid confusion.
What is daylight saving time?▼
DST moves clocks forward 1 hour in summer to extend evening daylight. Used in USA, Europe, Australia (reversed seasons). NOT used in Sri Lanka, India, UAE, China, Japan. During DST: USA Eastern is UTC-4 (not -5), UK is UTC+1 (not 0). Our converter uses standard (non-DST) offsets.
What time zones are used in Sri Lanka?▼
Sri Lanka Standard Time (SLST) = UTC+5:30. Sri Lanka is the same time as India (IST). There is no daylight saving time in Sri Lanka. Sri Lanka shares its UTC+5:30 zone with India — unusual because most zones are whole hours.
How do I plan an international meeting?▼
Find a time that works for everyone. A good time for Sri Lanka + UAE + UK meeting: 10 AM Sri Lanka = 8:30 AM UAE = 4:30 AM UK (too early!). Try: 3 PM Sri Lanka = 1:30 PM UAE = 9:30 AM UK. Use our converter to find overlapping business hours.
Why does India have a half-hour time zone?▼
India (UTC+5:30) chose a half-hour offset to be a single time zone for the entire country while avoiding being too far from solar noon at the extremes. Similarly, Sri Lanka, Iran (UTC+3:30), Afghanistan (UTC+4:30), and Nepal (UTC+5:45) use fractional offsets.