EpochDays

Date 1981-09-21

Monday • Unix Timestamp 369878400

Date Details

UTC Date/Time
Mon, 21 Sep 1981 00:00:00 GMT
Unix Timestamp
369,878,400
Days Since Epoch
4,281
Day of Week
Monday
ISO Week Number
Week 39
Year 2038 Status
Before Y2038 cutover

Code Examples

Python

import datetime
date_str = "1981-09-21"
dt = datetime.datetime.strptime(date_str, "%Y-%m-%d")
ts = int(dt.replace(tzinfo=datetime.timezone.utc).timestamp())
print(ts)  # 369878400

JavaScript

const dateStr = "1981-09-21";
const date = new Date(dateStr + "T00:00:00Z");
const ts = Math.floor(date.getTime() / 1000);
console.log(ts);  // 369878400

Java

import java.time.LocalDate;
import java.time.ZoneOffset;

String dateStr = "1981-09-21";
LocalDate date = LocalDate.parse(dateStr);
long ts = date.atStartOfDay(ZoneOffset.UTC).toEpochSecond();
System.out.println(ts);  // 369878400

Converter

Tip: the URL updates as you type — copy it to share a pre-filled input (`?d=` or `?ts=`).
Start of Day (Unix Timestamp)
---
Click to Copy
Human Date (UTC)
---
Click to Copy
Days From Epoch (Floored)
4281
Click to Copy
Human Date (Local)
9/21/1981, 12:00:00 AM
Click to Copy