Epoch Time: Unix Timestamps की नींव

JavaScript

// Get timestamp in milliseconds, divide by 1000 for seconds
const timestamp = Math.floor(Date.now() / 1000);

// Alternative method
const timestamp = Math.floor(new Date().getTime() / 1000);

PHP

// Simple and straightforward
$timestamp = time();

// Using DateTime (more flexible)
$timestamp = (new DateTime())->getTimestamp();

Python

import time

# Get current timestamp
timestamp = int(time.time())

# Using datetime module
from datetime import datetime
timestamp = int(datetime.now().timestamp())

Java

// Returns milliseconds, divide by 1000 for seconds
long timestamp = System.currentTimeMillis() / 1000;

// Using Instant (Java 8+)
long timestamp = Instant.now().getEpochSecond();

C#

// .NET Framework 4.6+ / .NET Core
long timestamp = DateTimeOffset.Now.ToUnixTimeSeconds();

// Older versions
var epoch = (DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc)).TotalSeconds;

Ruby

# Get current timestamp
timestamp = Time.now.to_i

# Alternative
timestamp = Time.new.to_i

Go

import "time"

// Get current Unix timestamp
timestamp := time.Now().Unix()

// For milliseconds
milliseconds := time.Now().UnixMilli()

MySQL

-- Get current timestamp
SELECT UNIX_TIMESTAMP();

-- Get timestamp from specific date
SELECT UNIX_TIMESTAMP('2025-10-12 14:30:00');

PostgreSQL

-- Get current timestamp
SELECT EXTRACT(EPOCH FROM NOW());

-- From specific date
SELECT EXTRACT(EPOCH FROM TIMESTAMP '2025-10-12 14:30:00');

SQLite

-- Get current timestamp
SELECT STRFTIME('%s', 'now');

-- From specific date
SELECT STRFTIME('%s', '2025-10-12 14:30:00');

Unix/Linux Shell

# Get current timestamp
date +%s

# Convert specific date to timestamp
date +%s -d "2025-10-12 14:30:00"

# For UTC/GMT time, use -ud instead of -d
date +%s -ud "2025-10-12 14:30:00"

PowerShell

# Get current timestamp
[int][double]::Parse((Get-Date (Get-Date).ToUniversalTime() -UFormat %s))

JavaScript

// Convert timestamp to Date object
const date = new Date(timestamp * 1000); // Multiply by 1000 for milliseconds

// Format it
console.log(date.toLocaleString()); // Local format
console.log(date.toISOString());    // ISO 8601 format

PHP

// Format timestamp
$date = date('Y-m-d H:i:s', $timestamp);

// RFC 2822 format
$date = date('r', $timestamp);

// Using DateTime
$date = (new DateTime())->setTimestamp($timestamp)->format('Y-m-d H:i:s');

Python

from datetime import datetime

# Convert to datetime object
dt = datetime.fromtimestamp(timestamp)

# Format it
formatted = dt.strftime('%Y-%m-%d %H:%M:%S')

# For UTC
dt_utc = datetime.utcfromtimestamp(timestamp)

MySQL

-- Convert timestamp to datetime
SELECT FROM_UNIXTIME(1728773400);

-- With custom format
SELECT FROM_UNIXTIME(1728773400, '%Y-%m-%d %H:%i:%s');

JavaScript

// Parse date string to timestamp
const timestamp = Math.floor(new Date('2025-10-12 14:30:00').getTime() / 1000);

// Using Date.parse()
const timestamp = Math.floor(Date.parse('October 12, 2025') / 1000);

PHP

// Parse most English date texts
$timestamp = strtotime('15 November 2025');
$timestamp = strtotime('next Monday');
$timestamp = strtotime('+1 week');

// Using DateTime
$timestamp = (new DateTime('2025-10-12 14:30:00'))->getTimestamp();

Python

from datetime import datetime
import time

# Parse date string
dt = datetime.strptime('2025-10-12 14:30:00', '%Y-%m-%d %H:%M:%S')
timestamp = int(dt.timestamp())

# For UTC
import calendar
timestamp = calendar.timegm(time.strptime('2025-10-12 14:30:00', '%Y-%m-%d %H:%M:%S'))