Unix Epoch Milestones

Track notable Unix timestamp milestones with live countdowns

Current Unix Timestamp

1,770,074,726

Current Epoch Day

20,486

Current UTC

2026-02-02 23:25:26 UTC

Upcoming Milestones

2 Billion Seconds

Unix timestamp reaches 2,000,000,000 seconds since January 1, 1970.

Unix Timestamp: 2,000,000,000
Date (UTC): Wednesday, May 18, 2033
Exact Time (UTC): 2033-05-18 03:33:20 UTC
Countdown: 7y 106d 4h 7m 54s

Year 2038 Problem

Critical

The maximum value for a signed 32-bit integer (2,147,483,647). Systems using 32-bit signed integers for Unix timestamps will overflow, potentially causing catastrophic failures similar to Y2K.

Unix Timestamp: 2,147,483,647
Date (UTC): Tuesday, January 19, 2038
Exact Time (UTC): 2038-01-19 03:14:07 UTC
Countdown: 11y 353d 3h 48m 41s

Day 25,000

25,000 days since Unix Epoch (January 1, 1970).

Unix Timestamp: 2,160,000,000
Date (UTC): Sunday, June 13, 2038
Exact Time (UTC): 2038-06-13 00:00:00 UTC
Countdown: 12y 133d 0h 34m 34s

2.5 Billion Seconds

Unix timestamp reaches 2,500,000,000 seconds since the epoch.

Unix Timestamp: 2,500,000,000
Date (UTC): Monday, March 22, 2049
Exact Time (UTC): 2049-03-22 04:26:40 UTC
Countdown: 23y 53d 5h 1m 14s

Day 30,000

30,000 days since Unix Epoch (January 1, 1970).

Unix Timestamp: 2,592,000,000
Date (UTC): Tuesday, February 20, 2052
Exact Time (UTC): 2052-02-20 00:00:00 UTC
Countdown: 26y 23d 0h 34m 34s

3 Billion Seconds

Unix timestamp reaches 3,000,000,000 seconds since the epoch.

Unix Timestamp: 3,000,000,000
Date (UTC): Saturday, January 24, 2065
Exact Time (UTC): 2065-01-24 05:20:00 UTC
Countdown: 39y 0d 5h 54m 34s

Day 35,000

35,000 days since Unix Epoch (January 1, 1970).

Unix Timestamp: 3,024,000,000
Date (UTC): Thursday, October 29, 2065
Exact Time (UTC): 2065-10-29 00:00:00 UTC
Countdown: 39y 278d 0h 34m 34s

Day 40,000

40,000 days since Unix Epoch (January 1, 1970).

Unix Timestamp: 3,456,000,000
Date (UTC): Saturday, July 8, 2079
Exact Time (UTC): 2079-07-08 00:00:00 UTC
Countdown: 53y 168d 0h 34m 34s

Day 50,000

50,000 days since Unix Epoch (January 1, 1970).

Unix Timestamp: 4,320,000,000
Date (UTC): Wednesday, November 24, 2106
Exact Time (UTC): 2106-11-24 00:00:00 UTC
Countdown: 80y 313d 0h 34m 34s

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About Unix Timestamp Milestones

Unix timestamps count the seconds since January 1, 1970 (the Unix Epoch). As this count grows, it passes notable milestones that are significant for both technical and cultural reasons.

The Year 2038 Problem

The most critical milestone is the Year 2038 problem (also called Y2K38 or the Epochalypse). On January 19, 2038 at 03:14:07 UTC, 32-bit signed integers used to store Unix timestamps will overflow from 2,147,483,647 to -2,147,483,648. This could cause systems to interpret dates as December 13, 1901, potentially causing widespread software failures similar to the Y2K bug.

Round Number Milestones

Programmers often celebrate when timestamps reach round billions (1 billion on September 9, 2001; 2 billion on May 18, 2033). These events sometimes inspire "Unix timestamp parties" in the tech community.

Day Number Milestones

Epoch days (calculated as timestamp ÷ 86400) also pass round milestones. Day 20,000 was October 24, 2024, and day 25,000 will be June 6, 2038.