Unix Timestamp 617756400
seconds · 36 years ago
⚡ Quick Answer
617756400 = Jul 29, 1989, 11:00:00 PM UTC
ISO 8601: 1989-07-29T23:00:00.000Z
Output Formats
ISO 8601
1989-07-29T23:00:00.000Z
RFC 2822
Sat, 29 Jul 1989 23:00:00 GMT
Human Readable
Saturday, July 29, 1989 at 11:00:00 PM UTC
Unix Seconds
617756400
Unix Milliseconds
617756400000
Day of Week
Saturday
Timezone Breakdown
UTC
Jul 29, 1989, 11:00:00 PM UTC
US Eastern
Jul 29, 1989, 07:00:00 PM EDT
US Pacific
Jul 29, 1989, 04:00:00 PM PDT
UK London
Jul 30, 1989, 12:00:00 AM GMT+1
Japan Tokyo
Jul 30, 1989, 08:00:00 AM GMT+9
Australia Sydney
Jul 30, 1989, 09:00:00 AM GMT+10
Related Timestamps
Frequently Asked Questions
What date is Unix timestamp 617756400?
Unix timestamp 617756400 represents Saturday, July 29, 1989 at 11:00:00 PM UTC. This is 36 years ago from the current time.
Is 617756400 in seconds or milliseconds?
617756400 has 9 digits, which means it is in seconds. Multiply by 1,000 to get milliseconds: 617756400000.
How do I convert 617756400 in JavaScript?
// Normalized to Unix seconds: 617756400 const tsSec = 617756400; new Date(tsSec * 1000).toISOString(); // "1989-07-29T23:00:00.000Z"
How do I convert 617756400 in Python?
import datetime
ts = 617756400
dt = datetime.datetime.fromtimestamp(
ts, tz=datetime.timezone.utc)
print(dt.isoformat())
# "1989-07-29T23:00:00.000Z"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.