Unix Timestamp 1100408400
seconds · 21 years ago
⚡ Quick Answer
1100408400 = Nov 14, 2004, 05:00:00 AM UTC
ISO 8601: 2004-11-14T05:00:00.000Z
Output Formats
ISO 8601
2004-11-14T05:00:00.000Z
RFC 2822
Sun, 14 Nov 2004 05:00:00 GMT
Human Readable
Sunday, November 14, 2004 at 05:00:00 AM UTC
Unix Seconds
1100408400
Unix Milliseconds
1100408400000
Day of Week
Sunday
Timezone Breakdown
UTC
Nov 14, 2004, 05:00:00 AM UTC
US Eastern
Nov 14, 2004, 12:00:00 AM EST
US Pacific
Nov 13, 2004, 09:00:00 PM PST
UK London
Nov 14, 2004, 05:00:00 AM GMT
Japan Tokyo
Nov 14, 2004, 02:00:00 PM GMT+9
Australia Sydney
Nov 14, 2004, 04:00:00 PM GMT+11
Related Timestamps
Frequently Asked Questions
What date is Unix timestamp 1100408400?
Unix timestamp 1100408400 represents Sunday, November 14, 2004 at 05:00:00 AM UTC. This is 21 years ago from the current time.
Is 1100408400 in seconds or milliseconds?
1100408400 has 10 digits, which means it is in seconds. Multiply by 1,000 to get milliseconds: 1100408400000.
How do I convert 1100408400 in JavaScript?
// Normalized to Unix seconds: 1100408400 const tsSec = 1100408400; new Date(tsSec * 1000).toISOString(); // "2004-11-14T05:00:00.000Z"
How do I convert 1100408400 in Python?
import datetime
ts = 1100408400
dt = datetime.datetime.fromtimestamp(
ts, tz=datetime.timezone.utc)
print(dt.isoformat())
# "2004-11-14T05:00:00.000Z"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.