Convert Unix Timestamp to Human Date & Time
Convert epoch timestamps in seconds and milliseconds into UTC and local date formats, or convert human dates into Unix time instantly with complete privacy.
How to Convert Unix Timestamps
Convert epoch timestamps in seconds and milliseconds into UTC and local date formats, or convert human dates into Unix time instantly with complete privacy.
Input Timestamp or Date
Paste an epoch timestamp integer (e.g., 1700000000) or pick a calendar date and time.
Select Timestamp Resolution
Choose between Unix seconds (10 digits) or milliseconds (13 digits).
View Formatted Conversions
Our date engine converts the timestamp into UTC, ISO 8601, and local timezone formats instantly.
Copy Results
Copy your preferred date string or epoch integer with one click for database queries or code.
Why Convert Timestamps with Khalasna?
Live Current Epoch Ticker
Displays the continuously ticking current Unix timestamp in real time with one-click copying.
Seconds & Milliseconds Support
Intelligently detects 10-digit second timestamps and 13-digit millisecond JavaScript timestamps.
UTC & Local Timezone Conversion
View the exact equivalent in your local browser timezone alongside standardized UTC time.
100% Private On-Device Logic
Date operations execute locally in your browser memory without server tracking.
Technical Architecture: POSIX Time Representation & The Year 2038 Problem
Unix epoch time (POSIX time) is defined as the number of seconds elapsed since 00:00:00 UTC on January 1, 1970, excluding leap seconds. In JavaScript, Date objects measure time in milliseconds since the epoch, utilizing 64-bit floating-point numbers capable of representing dates up to 100,000,000 days in the future. Systems storing timestamps in signed 32-bit integers will overflow on January 19, 2038 at 03:14:07 UTC (the Year 2038 Problem / Y2038). Khalasna executes timestamp conversion client-side using JavaScript Date and the Intl.DateTimeFormat API, computing both ISO 8601 strings (new Date(ts).toISOString()) and localized strings (date.toLocaleString()) with microsecond precision, ensuring total developer accuracy.
Popular Applications for Timestamp Conversion
Database Debugging & SQL Queries
Translate database timestamps (PostgreSQL, MySQL, Redis) into readable calendar times.
Server Log & Event Auditing
Decode server logs, cloud trail events, and telemetry timestamps during incident response.
API Development & Webhooks
Verify expiration timestamps (exp) in OAuth access tokens and webhook event headers.
Frequently Asked Questions
What is Unix time?
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What is Unix time?
+Unix time is the total number of seconds that have elapsed since January 1, 1970 (UTC), widely used by computer systems to track time.
How do I know if my timestamp is in seconds or milliseconds?
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How do I know if my timestamp is in seconds or milliseconds?
+A 10-digit number (e.g., 1700000000) is in seconds. A 13-digit number (e.g., 1700000000000) is in milliseconds.
Are my timestamps recorded or sent to servers?
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Are my timestamps recorded or sent to servers?
+No. All conversions run 100% locally in your web browser. No data is ever logged or transmitted.
Does the tool show my local timezone?
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Does the tool show my local timezone?
+Yes, it shows both universal UTC time and your local system timezone equivalent.
Is this Unix timestamp converter free?
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Is this Unix timestamp converter free?
+Yes, it is completely free with no usage limits or sign-up requirements.