Unix Timestamp 201538800
seconds · 50 years ago
⚡ Quick Answer
201538800 = May 21, 1976, 03:00:00 PM UTC
ISO 8601: 1976-05-21T15:00:00.000Z
Output Formats
ISO 8601
1976-05-21T15:00:00.000Z
RFC 2822
Fri, 21 May 1976 15:00:00 GMT
Human Readable
Friday, May 21, 1976 at 03:00:00 PM UTC
Unix Seconds
201538800
Unix Milliseconds
201538800000
Day of Week
Friday
Timezone Breakdown
UTC
May 21, 1976, 03:00:00 PM UTC
US Eastern
May 21, 1976, 11:00:00 AM EDT
US Pacific
May 21, 1976, 08:00:00 AM PDT
UK London
May 21, 1976, 04:00:00 PM GMT+1
Japan Tokyo
May 22, 1976, 12:00:00 AM GMT+9
Australia Sydney
May 22, 1976, 01:00:00 AM GMT+10
Related Timestamps
Frequently Asked Questions
What date is Unix timestamp 201538800?
Unix timestamp 201538800 represents Friday, May 21, 1976 at 03:00:00 PM UTC. This is 50 years ago from the current time.
Is 201538800 in seconds or milliseconds?
201538800 has 9 digits, which means it is in seconds. Multiply by 1,000 to get milliseconds: 201538800000.
How do I convert 201538800 in JavaScript?
// Normalized to Unix seconds: 201538800 const tsSec = 201538800; new Date(tsSec * 1000).toISOString(); // "1976-05-21T15:00:00.000Z"
How do I convert 201538800 in Python?
import datetime
ts = 201538800
dt = datetime.datetime.fromtimestamp(
ts, tz=datetime.timezone.utc)
print(dt.isoformat())
# "1976-05-21T15:00:00.000Z"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.