EpochDays

Date 1977-12-21

Wednesday • Unix Timestamp 251510400

Date Details

UTC Date/Time
Wed, 21 Dec 1977 00:00:00 GMT
Unix Timestamp
251,510,400
Days Since Epoch
2,911
Day of Week
Wednesday
ISO Week Number
Week 51
Year 2038 Status
Before Y2038 cutover

Code Examples

Python

import datetime
date_str = "1977-12-21"
dt = datetime.datetime.strptime(date_str, "%Y-%m-%d")
ts = int(dt.replace(tzinfo=datetime.timezone.utc).timestamp())
print(ts)  # 251510400

JavaScript

const dateStr = "1977-12-21";
const date = new Date(dateStr + "T00:00:00Z");
const ts = Math.floor(date.getTime() / 1000);
console.log(ts);  // 251510400

Java

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

String dateStr = "1977-12-21";
LocalDate date = LocalDate.parse(dateStr);
long ts = date.atStartOfDay(ZoneOffset.UTC).toEpochSecond();
System.out.println(ts);  // 251510400

Converter

Tip: the URL updates as you type — copy it to share a pre-filled input (`?d=` or `?ts=`).
Start of Day (Unix Timestamp)
---
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Human Date (UTC)
---
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Days From Epoch (Floored)
2911
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Human Date (Local)
12/21/1977, 12:00:00 AM
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