About Unix Timestamp Converter
Unix timestamp (also known as Epoch time or POSIX time) is a system for tracking the total number of seconds elapsed since January 1, 1970 (UTC/GMT midnight). This format is widely used in operating systems, file formats, and databases because it is compact, simple, and timezone-independent.
Our Unix timestamp converter provides a powerful toolkit for developers. You can instantly convert seconds or milliseconds to readable dates in your local time, UTC, or any specific timezone. Conversely, you can generate timestamps from dates for testing and database seeding.
Key Features
- Convert Unix timestamps to human-readable date-time values instantly
- Support batch conversion line by line and mark invalid rows
- Generate Unix timestamps from selected date and time
- Support both seconds (10 digits) and milliseconds (13 digits)
- Convert with local timezone, UTC, and common global timezones
- Auto-detect input format to reduce manual mistakes
- Show relative time output (for example, "2 hours ago")
- Provide ISO 8601 output plus day-of-week, day-of-year, and week number
Common Use Cases
- Debug API responses and database time fields
- Analyze server logs and event timelines
- Normalize local user time to UTC before storage
- Validate JWT expiration time (
exp) - Prepare timestamps for scheduled jobs and future events
FAQ
What is a Unix timestamp?
A Unix timestamp is the number of seconds elapsed since January 1, 1970 00:00:00 UTC (excluding leap seconds). It provides a timezone-independent way to track time in computer systems.
Does this tool support my local timezone?
Yes. While timestamps themselves are based on UTC, this tool allows you to convert dates to any specific timezone (local, UTC, or specific regions) for display.
What is the Year 2038 problem?
The Year 2038 problem refers to the overflow of 32-bit signed integers used to track Unix time on January 19, 2038. Modern systems using 64-bit integers are not affected by this limitation. This tool supports safe 64-bit timestamps.
How do I get the current timestamp in JavaScript?
Use const ts = Math.floor(Date.now() / 1000); for seconds, or Date.now() for milliseconds.
How do I get the current timestamp in Python?
Import the time module and use import time; timestamp = int(time.time()).
How do I get the current timestamp in PHP?
Simply call the time() function: $ts = time();.
How do I get the current timestamp in Java?
Use long ts = System.currentTimeMillis() / 1000; for seconds.
What's the difference between seconds and milliseconds timestamps?
A 10-digit timestamp is typically in seconds (standard Unix time). A 13-digit timestamp includes milliseconds (common in Java/JavaScript). This tool auto-detects.
Does Unix timestamp include leap seconds?
No, Unix time ignores leap seconds. A day is always treated as 86400 seconds. Leap seconds are handled by operating system clock adjustments (smearing or stepping), but not in the timestamp count itself.