What input formats are supported?

We support anything the JavaScript Date object accepts, including ISO strings (YYYY-MM-DD), short dates (MM/DD/YYYY), and long dates (January 1, 2024).

Is it local or server time?

The conversion happens in your browser based on your system's local time zone, unless the input string specifies a timezone.

Can I convert to JSON format?

Yes, the tool provides the .toJSON() output which is the standard ISO string format used in JSON APIs.

Date Format Converter

Free online Date Format Converter. Parse dates from natural language or ISO formats and convert them to standard ISO 8601, UTC, local, and custom date strings. Developer friendly tool.

100% PrivateInstant ProcessingNo Upload Required

Free online date format converter tool. Process your files securely in your browser - your data never leaves your device.

Input Date

Supports natural language like "January 1, 2024", ISO "2024-01-01", or timestamps.

ISO 8601

2026-02-28T20:26:37.000Z

UTC String

Sat, 28 Feb 2026 20:26:37 GMT

Date String

Sat Feb 28 2026

Time String

20:26:37 GMT+0000 (Coordinated Universal Time)

Locale Date

2/28/2026

Locale Time

8:26:37 PM

Unix Timestamp (s)

1772310397

Unix Timestamp (ms)

1772310397000

JSON

2026-02-28T20:26:37.000Z

Key Features

Parse natural language dates
Convert to ISO 8601
Convert to UTC / GMT
Convert to Unix Timestamp
Locale-specific formatting
Instant copy

Common Use Cases

Standardize date formats for APIs
Debug date strings
Convert timestamps to human text
Localize dates

Frequently Asked Questions

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