timestamp

Note

This is one of 200 standalone projects, maintained as part of the @thi.ng/umbrella monorepo and anti-framework.

🚀 Please help me to work full-time on these projects by sponsoring me on GitHub. Thank you! ❤️

• About
• Status
• Installation
• Dependencies
• API
• Authors
• License

About

Timestamp getter wrapping (in order of preference) process.hrtime.bigint(), performance.now() or Date.now().

Note

The functions in this package have been extracted from @thi.ng/bench.

This package provides the following functions:

• now() attempts to use high-res ES BigInt timestamps (in Node via process.hrtime.bigint()), or falls back to performance.now(), or lacking that, uses Date.now(). In all cases, returns a (possibly rounded) nanosec-scale timestamp, either as bigint or number.
• timeDiff() function can be used to compute the difference between two such timestamp and return it as milliseconds.
• asMillis() takes a duration (either a number or bigint) in nanosec-scale and converts it to a JS number in milliseconds

Status

STABLE - used in production

Search or submit any issues for this package

Installation

yarn add @thi.ng/timestamp

ESM import:

import * as tim from "@thi.ng/timestamp";

Browser ESM import:

<script type="module" src="https://esm.run/@thi.ng/timestamp"></script>

JSDelivr documentation

For Node.js REPL:

const tim = await import("@thi.ng/timestamp");

Package sizes (brotli'd, pre-treeshake): ESM: 214 bytes

Dependencies

None

API

Generated API docs

TODO

Authors

• Karsten Schmidt

If this project contributes to an academic publication, please cite it as:

@misc{thing-timestamp,
  title = "@thi.ng/timestamp",
  author = "Karsten Schmidt",
  note = "https://thi.ng/timestamp",
  year = 2018
}

License

© 2018 - 2025 Karsten Schmidt // Apache License 2.0