duration

Simplify website creation by integrating humanize.md for clear, natural AI-generated design prompts within your project root folder.

A fixed-income curve toolkit: day count conventions, discount curve bootstrapping, bond analytics, key rate risk and option-adjusted spread.

Regular expression to match a duration string.

Parse a duration string into an object.

Excel model that prices a bond on a Treasury curve, hedges a $1M position with a second bond using duration, and shows the $8,560 convexity residual left at ±3% yield shocks.

A datetime library for Rust that encourages you to jump into the pit of success.

Extract every quantity with its unit, normalized, and refuse the ambiguous ones by name

Parse, modify, and format time durations.

YTSort — sort any YouTube playlist by duration. Bookmarklet, userscript & extension.

Sort any YouTube playlist you own by video length, shortest or longest first, in seconds. Fast, server-verified reordering through YouTube's own API, with a drag-and-drop fallback. Userscript + Chrome extension.

⏱️ Millisecond conversion utility

⏳ Extend primitive integers in Rust with methods for creating `std::time::Duration` objects, making your code more expressive and easy to read.

Go-style duration parsing for Python (1h30m, -2h, etc.)

TC39 Temporal API for PHP — immutable dates, times, durations, and time zones with nanosecond precision

Financial Quantitative Analysis

⏲️ Simple profiler to measure duration, memory usage and memory peak of various scoped actions

Time values and the clocks that read them, for code where a nanosecond counts.

From-scratch Treasury & IG corporate bond pricing and portfolio-risk engine: curve bootstrapping, duration/convexity, key-rate DV01, CS01, stress tests, curve PCA and a constrained rebalance optimizer (simulated $100MM portfolio)

ISO 8601 date, duration, and interval parser

Things to help you bend space and time to your will. Or at least do some calculations with it.