Unix Timestamp 690378400
seconds · 34 years ago
⚡ Quick Answer
690378400 = Nov 17, 1991, 11:46:40 AM UTC
ISO 8601: 1991-11-17T11:46:40.000Z
Output Formats
ISO 8601
1991-11-17T11:46:40.000Z
RFC 2822
Sun, 17 Nov 1991 11:46:40 GMT
Human Readable
Sunday, November 17, 1991 at 11:46:40 AM UTC
Unix Seconds
690378400
Unix Milliseconds
690378400000
Day of Week
Sunday
Timezone Breakdown
UTC
Nov 17, 1991, 11:46:40 AM UTC
US Eastern
Nov 17, 1991, 06:46:40 AM EST
US Pacific
Nov 17, 1991, 03:46:40 AM PST
UK London
Nov 17, 1991, 11:46:40 AM GMT
Japan Tokyo
Nov 17, 1991, 08:46:40 PM GMT+9
Australia Sydney
Nov 17, 1991, 10:46:40 PM GMT+11
Related Timestamps
Frequently Asked Questions
What date is Unix timestamp 690378400?
Unix timestamp 690378400 represents Sunday, November 17, 1991 at 11:46:40 AM UTC. This is 34 years ago from the current time.
Is 690378400 in seconds or milliseconds?
690378400 has 9 digits, which means it is in seconds. Multiply by 1,000 to get milliseconds: 690378400000.
How do I convert 690378400 in JavaScript?
// Normalized to Unix seconds: 690378400 const tsSec = 690378400; new Date(tsSec * 1000).toISOString(); // "1991-11-17T11:46:40.000Z"
How do I convert 690378400 in Python?
import datetime
ts = 690378400
dt = datetime.datetime.fromtimestamp(
ts, tz=datetime.timezone.utc)
print(dt.isoformat())
# "1991-11-17T11:46:40.000Z"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.