Frontend Frameworks

tz-format

Format dates with timezone information in JavaScript.

Status
UnmaintainedNo commits in 3611 days.
Last checked
Checked · Oct 13, 2026
License
Open source
Pricing
Free tier · from $0

What it is

A lightweight JavaScript library to format date strings with timezone details. Useful for developers needing precise time and timezone representation in their applications.

tz-format offers a straightforward solution for adding timezone information to date strings, making it an ideal choice for developers who need simple and precise date-time representation without the overhead of larger libraries.

When it fits — and when it doesn’t

A good fit for

  • JavaScript developers who need to format date strings with timezone information for their applications.

  • Projects requiring clear and accurate representation of dates and times across different regions.

Look elsewhere if

  • Applications that require complex time zone conversions or calculations beyond formatting.

  • Scenarios where a full-fledged date/time library is necessary due to extensive functionality requirements.

Known weaknesses

Each one links to the public issue, changelog or docs page it came from, where we have one.

  1. 01

    Limited language support

    The tool is primarily designed for JavaScript, limiting its utility in polyglot environments.

  2. 02

    Poor documentation

    The official documentation lacks comprehensive examples and detailed explanations of edge cases.

  3. 03

    Performance issues with large datasets

    When formatting a high volume of date strings, the library can become slow and resource-intensive.

  4. 04

    Small community support

    The open-source project has limited contributors and infrequent updates, leading to slower issue resolution and feature development.

What it does well

  • Simple and lightweight for date formatting with timezone support.

  • Easy to integrate into existing JavaScript projects.

Pricing

Free tier
YesOpen source — free to use
Paid from
$0
Model
Flat rate
Enterprise plan
No

Pricing not independently confirmed — check the vendor’s page.

Performance benchmarks

How Fast Is It?

Set up tz-format

Setup steps, common gotchas and what to check after 30 days.

Open the setup guide →
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tz-format — tracked on AI Navigator

Markdown

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HTML

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