📅 Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa. Supports seconds and milliseconds with multiple date formats.
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🕐 Timestamp to Date
Epoch Start
2001-09-09
2017-07-14
2033-05-18
📆 Date to Timestamp
📖 What is Unix Timestamp?
- Definition: Number of seconds since January 1, 1970 00:00:00 UTC (Unix Epoch)
- Seconds vs Milliseconds: Most systems use seconds, JavaScript uses milliseconds
- Universal: Same timestamp represents same moment worldwide, regardless of timezone
- Use Cases: Databases, APIs, file systems, logging, scheduling
- Y2038 Problem: 32-bit timestamps will overflow on January 19, 2038
- Timezone-Free: Always UTC, convert to local time for display
📋 How to Use the Timestamp Converter
- To convert a timestamp, enter the Unix timestamp and choose seconds or milliseconds.
- To convert a date, pick the date, time and timezone.
- Copy the date or timestamp, or use the buttons to fill in the current time.
🎯 When to Use It
- Reading timestamps in logs, databases and API responses.
- Making a timestamp for a test or a scheduled task.
- Checking time differences across timezones.
💡 Tips & Common Pitfalls
- A 10-digit number is usually seconds and a 13-digit one is milliseconds. Choosing the wrong unit gives a date in 1970 or far in the future.
- Unix timestamps are always UTC. The timezone setting only changes how the date is displayed.
- Check whether Local Time or UTC is selected before you copy a result.
❓ Frequently Asked Questions
What is the Unix Epoch?
The Unix Epoch is January 1, 1970 at 00:00:00 UTC. This is the starting point (timestamp 0) for Unix time.
Seconds or milliseconds?
Most programming languages use seconds (Unix timestamp). JavaScript uses milliseconds. Our tool supports both.
How do I convert timestamps in my code?
In JavaScript: new Date(timestamp * 1000). In Python: datetime.fromtimestamp(timestamp). In PHP: date('Y-m-d', timestamp).
Why are timestamps used?
Timestamps are timezone-independent, easy to compare, sort, and calculate time differences. They're the standard for storing dates in databases.