Unix Timestamp — Free Online Converter

JavaScript

// Get current epoch in seconds
Math.floor(Date.now() / 1000)  // ~1746400000

// Convert epoch seconds to ISO date
new Date(1746400000 * 1000).toISOString()
// → "2026-05-05T00:26:40.000Z"

Python

import time
from datetime import datetime, timezone

# Get current epoch in seconds
int(time.time())  # ~1746400000

# Convert to UTC datetime
datetime.fromtimestamp(1746400000, tz=timezone.utc).isoformat()
# → '2026-05-05T00:26:40+00:00'

Linux / macOS Terminal

# Get the current Unix timestamp
date +%s

# Convert a Unix timestamp to a human-readable date
date -d @1746400000

Windows PowerShell

# Get the current Unix timestamp
[DateTimeOffset]::UtcNow.ToUnixTimeSeconds()

# Convert a Unix timestamp to a readable date
[DateTimeOffset]::FromUnixTimeSeconds(1746400000).UtcDateTime

MySQL

-- Get the current Unix timestamp (~1746400000)
SELECT UNIX_TIMESTAMP();

-- Convert a stored Unix timestamp to a readable date
SELECT FROM_UNIXTIME(1746400000);
-- → '2026-05-05 00:26:40'

PostgreSQL

-- Get the current Unix epoch seconds (~1746400000)
SELECT EXTRACT(EPOCH FROM NOW());

-- Convert a Unix timestamp to a timestamptz
SELECT TO_TIMESTAMP(1746400000);
-- → '2026-05-05 00:26:40+00'

REST APIs

Many REST APIs return Unix timestamps in response bodies or headers. Common fields include created_at, updated_at, and expires_at in epoch seconds. The HTTP Date header uses RFC 2822 format, but X-RateLimit-Reset commonly carries a Unix timestamp in seconds.

// Parse an epoch seconds field from a JSON API response
const createdAt = new Date(response.created_at * 1000).toISOString();