Unix Timestamp Converter Online - Unix Epoch
Free Unix timestamp and epoch converter. Convert epoch to time, convert Unix epoch to date, and convert date-time back to epoch in seconds or milliseconds.
Unix timestamp converter
timestamp to datetime
datetime to timestamp ( Format: year-month-day hour:minute:second )
Multiple unix timestamp converter
multiple timestamp => datetime (one per line)
multiple datetime => to timestamp (one per line)
What is unix epoch time?
Unix epoch time (also known as Unix time, Unix timestamp, POSIX time, seconds since the epoch) is a system for describing a point in time.
It is the number of seconds that have elapsed since the unix epoch, minus leap seconds; the unix epoch is 00:00:00 UTC on 1 January 1970 (an arbitrary date); leap seconds are ignored,with a leap second having the same unix time as the second before it, and every day is treated as if it contains exactly 86400 seconds. due to this treatment unix time is not a true representation of UTC.
| Human Readable Time | Seconds |
|---|---|
| 1 Minute | 60 Seconds |
| 1 Hour | 3600 Seconds |
| 1 Day | 86400 Seconds |
| 1 Week | 604800 Seconds |
| 1 Year (365 Day) | 31536000 Seconds |
Some important unix epoch and dateTime
How to Use Unix Timestamp Converter
Our Unix timestamp converter is designed for common tasks like "convert epoch to time" and "convert Unix epoch to date". You can convert between Unix timestamps and human-readable date formats in seconds or milliseconds.
For dedicated workflows, use Epoch to Date Converter to convert epoch to time and convert Unix epoch to date. You can also use Date Format Converter for cross-format date and epoch conversion.
Converting Timestamp to Date
- Enter the Unix timestamp in the first input field (supports seconds or milliseconds)
- Select the appropriate unit (seconds or milliseconds)
- Choose your preferred timezone
- Click the "Convert" button to see the result in human-readable format
Converting Date to Timestamp
- Enter the date in YYYY-MM-DD HH:MM:SS format
- Select the timezone your date corresponds to
- Select your desired output unit (seconds or milliseconds)
- Click the "Convert" button to get the Unix timestamp
Batch Conversion
For multiple conversions, use our batch conversion tools. Simply enter one timestamp or date per line, select the appropriate options, and click "Convert" to process them all at once.
Frequently Asked Questions
What is a Unix timestamp?
A Unix timestamp represents the number of seconds that have elapsed since January 1, 1970, at 00:00:00 UTC (the Unix Epoch). It is a standardized way to represent a specific point in time regardless of timezone or locale.
Why do we use Unix timestamps?
Unix timestamps are widely used in programming and databases because they are efficient to store (as a single number), easy to compare, and independent of time zones and daylight saving time changes. They provide a universal reference for time across different systems.
What is the difference between seconds and milliseconds in Unix timestamps?
The standard Unix timestamp counts seconds since the Unix Epoch. However, for applications requiring greater precision, millisecond timestamps are used, which are 1000 times larger than the standard second-based timestamp (e.g., 1622505600000 instead of 1622505600).
How do I handle dates before 1970 (the Unix Epoch)?
Dates before January 1, 1970, are represented as negative Unix timestamps. For example, December 31, 1969, at 23:59:59 UTC would be -1 second from the Unix Epoch.
Will Unix timestamps ever run out?
The 32-bit Unix timestamp will overflow on January 19, 2038 (known as the "Year 2038 problem"). However, most modern systems use 64-bit timestamps, which will not overflow for billions of years.
Common Uses for Unix Timestamps
Unix timestamps are utilized across various applications and domains:
- Database record timestamps and log entries
- Scheduling and cron jobs in operating systems
- File creation and modification times
- Network protocol time synchronization
- Tracking events in web analytics and user activity monitoring
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"This timestamp converter has saved me countless hours of debugging. The accuracy and ease of use are outstanding."
"The batch conversion feature is a game-changer. I can process hundreds of timestamps in seconds."
"Reliable, fast, and supports all the timezones I need. Perfect for log analysis and system monitoring."