Time Conversion Chart
The Time Conversion Chart is a reference tool covering time conversion chart, time zone conversion chart, hours to minutes chart, minutes to seconds chart. Use the chart below to look up values instantly. Printable and downloadable versions are available on this page.
Time Unit Conversion Chart
| Unit | Seconds | Minutes | Hours | Days | Weeks | Months (approx.) | Years (approx.) | Milliseconds |
|---|---|---|---|---|---|---|---|---|
| 1 second | 1 | 0.01667 | 0.000278 | 0.0000116 | 0.00000165 | 0.000000380 | 0.0000000317 | 1,000 |
| 1 minute | 60 | 1 | 0.01667 | 0.000694 | 0.0000992 | 0.0000228 | 0.00000190 | 60,000 |
| 1 hour | 3,600 | 60 | 1 | 0.04167 | 0.005952 | 0.001369 | 0.000114 | 3,600,000 |
| 1 day | 86,400 | 1,440 | 24 | 1 | 0.14286 | 0.032855 | 0.002738 | 86,400,000 |
| 1 week | 604,800 | 10,080 | 168 | 7 | 1 | 0.22998 | 0.019165 | 604,800,000 |
| 1 month (avg. 30.44 days) | 2,629,746 | 43,829 | 730.5 | 30.44 | 4.348 | 1 | 0.08333 | 2,629,746,000 |
| 1 year (365.25 days) | 31,557,600 | 525,960 | 8,766 | 365.25 | 52.18 | 12 | 1 | 31,557,600,000 |
| 1 decade | 315,576,000 | 5,259,600 | 87,660 | 3,652.5 | 521.8 | 120 | 10 | — |
| 1 century | 3,155,760,000 | 52,596,000 | 876,600 | 36,525 | 5,218 | 1,200 | 100 | — |
| 1 millisecond | 0.001 | 0.0000167 | 0.000000278 | 0.0000000116 | 0.0000000017 | 0.00000000038 | 0.0000000000317 | 1 |
Source: Standard international time unit definitions (SI and Gregorian calendar)
Common Time Conversions — Quick Reference
| Conversion | Result |
|---|---|
| 1 hour in minutes | 60 minutes |
| 1 day in hours | 24 hours |
| 1 day in minutes | 1,440 minutes |
| 1 day in seconds | 86,400 seconds |
| 1 week in days | 7 days |
| 1 week in hours | 168 hours |
| 1 month in days (average) | 30.44 days (365 ÷ 12) |
| 1 year in days | 365 days (366 in a leap year) |
| 1 year in weeks | 52 weeks and 1 day (52.18 weeks) |
| 1 year in hours | 8,760 hours (8,784 in a leap year) |
| 1 year in minutes | 525,600 minutes |
| 1 year in seconds | 31,536,000 seconds |
| 1 decade in years | 10 years |
| 1 century in years | 100 years |
| 1 millennium in years | 1,000 years |
| 100 milliseconds in seconds | 0.1 seconds |
| 1 microsecond in seconds | 0.000001 seconds (1 × 10⁻⁶) |
| 1 nanosecond in seconds | 0.000000001 seconds (1 × 10⁻⁹) |
| Half an hour in minutes | 30 minutes |
| Quarter of an hour in minutes | 15 minutes |
Source: Standard Gregorian calendar definitions
Hours and Minutes Chart
| Decimal Hours | Hours and Minutes |
|---|---|
| 0.25 hours | 15 minutes |
| 0.50 hours | 30 minutes |
| 0.75 hours | 45 minutes |
| 1.00 hours | 1 hour 0 minutes |
| 1.25 hours | 1 hour 15 minutes |
| 1.50 hours | 1 hour 30 minutes |
| 1.75 hours | 1 hour 45 minutes |
| 2.00 hours | 2 hours 0 minutes |
| 2.25 hours | 2 hours 15 minutes |
| 2.50 hours | 2 hours 30 minutes |
| 2.75 hours | 2 hours 45 minutes |
| 3.00 hours | 3 hours 0 minutes |
| 3.25 hours | 3 hours 15 minutes |
| 3.50 hours | 3 hours 30 minutes |
| 3.75 hours | 3 hours 45 minutes |
| 4.00 hours | 4 hours 0 minutes |
| 4.50 hours | 4 hours 30 minutes |
| 5.00 hours | 5 hours 0 minutes |
| 5.50 hours | 5 hours 30 minutes |
| 6.00 hours | 6 hours 0 minutes |
Source: Standard decimal-to-minutes conversion
Time Zone Reference — UTC Offsets
| Time Zone Name | Abbreviation | UTC Offset | Example Locations |
|---|---|---|---|
| Coordinated Universal Time | UTC | UTC+0 | Greenwich, London (winter), Reykjavik |
| British Summer Time | BST | UTC+1 | London (summer) |
| Central European Time | CET | UTC+1 | Berlin, Paris, Rome (winter) |
| Central European Summer Time | CEST | UTC+2 | Berlin, Paris, Rome (summer) |
| Eastern European Time | EET | UTC+2 | Athens, Helsinki, Cairo |
| Moscow Time | MSK | UTC+3 | Moscow, Istanbul |
| Gulf Standard Time | GST | UTC+4 | Dubai, Abu Dhabi |
| India Standard Time | IST | UTC+5:30 | New Delhi, Mumbai |
| China Standard Time | CST | UTC+8 | Beijing, Shanghai, Singapore |
| Japan Standard Time | JST | UTC+9 | Tokyo, Seoul |
| Eastern Standard Time | EST | UTC−5 | New York (winter) |
| Eastern Daylight Time | EDT | UTC−4 | New York (summer) |
| Central Standard Time | CST | UTC−6 | Chicago (winter) |
| Pacific Standard Time | PST | UTC−8 | Los Angeles (winter) |
| Pacific Daylight Time | PDT | UTC−7 | Los Angeles (summer) |
Source: timeanddate.com — Time Zone List and IANA Time Zone Database
Time Zone Converter
Enter a time in one time zone and convert it to any other. The tool shows current time in major cities worldwide, is DST-aware, and includes a work hours overlap calculator for remote teams.
Convert a Specific Time
Current Time in Major Cities
Times update every 30 seconds based on your device clock.
Work Hours Overlap Calculator
Find overlapping business hours (9am–5pm) between two time zones for remote team scheduling.
Click "Find Overlap" to check overlapping business hours.
Frequently Asked Questions
How many seconds are in a day?
86,400 seconds. Calculated as 24 hours × 60 minutes × 60 seconds.
How many minutes are in a year?
525,600 minutes in a standard 365-day year. A leap year has 527,040 minutes.
How many hours are in a week?
168 hours. Calculated as 7 days × 24 hours.
How many days are in a month?
Calendar months range from 28 to 31 days. The average month is approximately 30.44 days (365.25 days divided by 12 months).
How do you convert decimal hours to minutes?
Multiply the decimal portion of the hour by 60. For example 2.75 hours: the 0.75 decimal portion × 60 = 45 minutes, giving 2 hours and 45 minutes.
What is UTC time?
UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks and time. It is based on atomic clocks and does not observe daylight saving time — it is the successor to Greenwich Mean Time (GMT).
How many weeks are in a year?
A standard year has 52 weeks and 1 day. This is because 365 days divided by 7 equals 52.14 weeks — the 0.14 of a week equals approximately 1 extra day.
How long is a million seconds?
One million seconds equals approximately 11.57 days. One billion seconds equals approximately 31.7 years.