Date to Timestamp

Swift

let date = NSDate()
let timestamp = date.timeIntervalSince1970

Go

import (
    "time"
)
t := time.Now()
timestamp := t.Unix()

Java

java.util.Date date = new java.util.Date();
long timestamp = date.getTime() / 1000;

C

#include <time.h>
time_t t = time(NULL);
long timestamp = (long)t;

JavaScript

const date = new Date();
const timestamp = Math.round(date.getTime() / 1000);

Objective-C

NSDate *date = [NSDate date];
NSTimeInterval timestamp = [date timeIntervalSince1970];

MySQL

SELECT unix_timestamp('2021-06-26 12:00:00')

SQLite

SELECT strftime('%s', '2021-06-26 12:00:00')

Erlang

Datetime = calendar:universal_time(),
Timestamp = calendar:datetime_to_gregorian_seconds(Datetime) - 719528*24*3600.

PHP

<?php
// pure php
$date = new DateTime();
$timestamp = $date->getTimestamp();

Python

import time
from datetime import datetime
date = datetime.now()
timestamp = int(date.timestamp())

Ruby

time = Time.now
timestamp = time.to_i

Shell

time = Time.now
timestamp = time.to_i

Groovy

Date date = new Date()
long timestamp = (date.time / 1000).longValue()

Lua

date = os.time({year=2021, month=6, day=26, hour=12, min=0, sec=0})
timestamp = date

.NET/C#

DateTimeOffset date = DateTimeOffset.Now;
long timestamp = date.ToUnixTimeSeconds();

Dart

DateTimeOffset date = DateTimeOffset.Now;
long timestamp = date.ToUnixTimeSeconds();