Unix Timestamp 1423631600
seconds · 11 years ago
⚡ Quick Answer
1423631600 = Feb 11, 2015, 05:13:20 AM UTC
ISO 8601: 2015-02-11T05:13:20.000Z
Output Formats
ISO 8601
2015-02-11T05:13:20.000Z
RFC 2822
Wed, 11 Feb 2015 05:13:20 GMT
Human Readable
Wednesday, February 11, 2015 at 05:13:20 AM UTC
Unix Seconds
1423631600
Unix Milliseconds
1423631600000
Day of Week
Wednesday
Timezone Breakdown
UTC
Feb 11, 2015, 05:13:20 AM UTC
US Eastern
Feb 11, 2015, 12:13:20 AM EST
US Pacific
Feb 10, 2015, 09:13:20 PM PST
UK London
Feb 11, 2015, 05:13:20 AM GMT
Japan Tokyo
Feb 11, 2015, 02:13:20 PM GMT+9
Australia Sydney
Feb 11, 2015, 04:13:20 PM GMT+11
Related Timestamps
Frequently Asked Questions
What date is Unix timestamp 1423631600?
Unix timestamp 1423631600 represents Wednesday, February 11, 2015 at 05:13:20 AM UTC. This is 11 years ago from the current time.
Is 1423631600 in seconds or milliseconds?
1423631600 has 10 digits, which means it is in seconds. Multiply by 1,000 to get milliseconds: 1423631600000.
How do I convert 1423631600 in JavaScript?
// Normalized to Unix seconds: 1423631600 const tsSec = 1423631600; new Date(tsSec * 1000).toISOString(); // "2015-02-11T05:13:20.000Z"
How do I convert 1423631600 in Python?
import datetime
ts = 1423631600
dt = datetime.datetime.fromtimestamp(
ts, tz=datetime.timezone.utc)
print(dt.isoformat())
# "2015-02-11T05:13:20.000Z"What is the Unix timestamp for right now?
Use our live timestamp converter to get the current Unix timestamp. In JavaScript: Math.floor(Date.now() / 1000). In Python: int(time.time()). In bash: date +%s.
Need to convert a different timestamp?
Our full converter supports seconds, milliseconds, microseconds, 25+ timezones, and auto-detection.
Open Full Converter →Related Guides & Tutorials
// developers also readComplete Guide to Unix Timestamp Precision in 2026
The definitive guide to Unix timestamp precision, formats, and edge cases in production.
Unix Timestamps in JavaScript
Date.now(), the Temporal API, and timezone-aware timestamp handling in JavaScript.
Session Management with Timestamp Expiration
JWT expiration, session timeouts, and token refresh using Unix timestamps.