Unix Timestamp Converter & Epoch Clock
Bidirectional epoch seconds, milliseconds, and human date-time converter with live ticking clock on Nivotools.online.
Current Unix Epoch Timestamp:
0000000000
Timestamp → Human Date
Epoch to Date
Offsets:
Format Detected:
Epoch Seconds (10 digits)
UTC Time:
Sun, 04 Oct 2026 18:38:00 GMT
Local Time:
Mon, Oct 5, 2026, 00:08:00 AM
ISO 8601:
2026-10-04T18:38:00.000Z
Relative:
Just now
Human Date → Timestamp
Date to Epoch
Epoch Seconds:
1791139080
Epoch Milliseconds:
1791139080000
UTC String:
Sun, 04 Oct 2026 18:38:00 GMT
RFC 2822:
Sun, 04 Oct 2026 18:38:00 +0000
What is a Unix Timestamp?
A Unix timestamp (commonly referred to as Unix epoch time or POSIX time) is an integer tracking the elapsed number of seconds since the Unix Epoch: Thursday, January 1, 1970, at 00:00:00 UTC, excluding leap seconds. Because it is a unified, timezone-independent scalar integer, it serves as the universal standard for timestamping rows in relational databases (PostgreSQL, MySQL, SQLite), caching expiration limits in Redis, setting JWT token claims (exp, iat), and syncing distributed microservices.
How to Get the Current Unix Timestamp in Programming Languages
| Language / Runtime | Seconds (10 Digits) | Milliseconds (13 Digits) |
|---|---|---|
| JavaScript / Node.js | Math.floor(Date.now() / 1000) |
Date.now() |
| Python 3 | int(time.time()) |
int(time.time() * 1000) |
| PHP | time() |
(int)(microtime(true) * 1000) |
| Go (Golang) | time.Now().Unix() |
time.Now().UnixMilli() |
| Java | Instant.now().getEpochSecond() |
System.currentTimeMillis() |
| SQL (MySQL / Postgres) | UNIX_TIMESTAMP() |
ROUND(UNIX_TIMESTAMP(NOW(3)) * 1000) |
The Year 2038 Problem (Y2038)
On older 32-bit computing systems, signed integers allocate 31 bits for the timestamp value and 1 bit for the positive/negative sign. The maximum signed 32-bit integer is 2,147,483,647, which corresponds exactly to Tuesday, January 19, 2038, at 03:14:07 UTC. Beyond this second, 32-bit systems will suffer an integer overflow, rolling over to negative numbers and misinterpreting the time as December 13, 1901. Modern operating systems, databases, and programming languages use 64-bit signed integers, which will prevent overflow for approximately 292 billion years.
Frequently Asked Questions (FAQ)
What is the difference between seconds and milliseconds in timestamps?
Standard Unix epoch timestamps are measured in seconds and consist of 10 digits (e.g., 1700000000). High-precision systems and JavaScript runtimes frequently use milliseconds, producing 13 digits (e.g., 1700000000000). Nivotools automatically detects whether your input has 10 or 13 digits and normalizes the date calculations automatically.
Are Unix timestamps affected by Daylight Saving Time (DST) or Timezones?
No. The Unix timestamp is an absolute elapsed second count always referenced to UTC (Coordinated Universal Time). Timezone offsets and Daylight Saving Time changes only occur when formatting the timestamp for human display in local coordinates.
Is my date or timestamp data sent to any remote server?
No. All clock updates, date calculations, and timezone string conversions happen client-side inside your local browser memory using JavaScript. Zero server requests, zero logs, 100% private.