Unix Timestamp 990424800
seconds · 25 years ago
⚡ Quick Answer
990424800 = May 21, 2001, 06:00:00 AM UTC
ISO 8601: 2001-05-21T06:00:00.000Z
Output Formats
ISO 8601
2001-05-21T06:00:00.000Z
RFC 2822
Mon, 21 May 2001 06:00:00 GMT
Human Readable
Monday, May 21, 2001 at 06:00:00 AM UTC
Unix Seconds
990424800
Unix Milliseconds
990424800000
Day of Week
Monday
Timezone Breakdown
UTC
May 21, 2001, 06:00:00 AM UTC
US Eastern
May 21, 2001, 02:00:00 AM EDT
US Pacific
May 20, 2001, 11:00:00 PM PDT
UK London
May 21, 2001, 07:00:00 AM GMT+1
Japan Tokyo
May 21, 2001, 03:00:00 PM GMT+9
Australia Sydney
May 21, 2001, 04:00:00 PM GMT+10
Related Timestamps
Frequently Asked Questions
What date is Unix timestamp 990424800?
Unix timestamp 990424800 represents Monday, May 21, 2001 at 06:00:00 AM UTC. This is 25 years ago from the current time.
Is 990424800 in seconds or milliseconds?
990424800 has 9 digits, which means it is in seconds. Multiply by 1,000 to get milliseconds: 990424800000.
How do I convert 990424800 in JavaScript?
// Normalized to Unix seconds: 990424800 const tsSec = 990424800; new Date(tsSec * 1000).toISOString(); // "2001-05-21T06:00:00.000Z"
How do I convert 990424800 in Python?
import datetime
ts = 990424800
dt = datetime.datetime.fromtimestamp(
ts, tz=datetime.timezone.utc)
print(dt.isoformat())
# "2001-05-21T06:00:00.000Z"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.