About us
About Deadline Engine
Deadline Engine is a legal deadline calculator for litigation, tribunal, regulatory, and commercial work.
Why we built it
The date should never be the thing that goes wrong.
Critical dates are still often tracked across spreadsheets, PDF rules, email notes, and memory.
That approach breaks down when deemed service, clear days, bank holidays, court closures, or tribunal-specific counting rules change the answer. Deadline Engine reduces that risk by making the route to the result easier to review.
Deadline Engine is operated by Thesmios Ltd and developed for legal teams that need clearer deadline calculation workflows.
Principle
Primary sources first
Calculation rules are encoded from procedural rules, practice directions, protocols, tribunal rules, and official materials.
Principle
Results must be checkable
Each calculation is intended to show enough context for a legal professional to verify the date.
Principle
Built for working files
Saved deadlines, reminders, and exports support matter management without changing the calculation logic.
Next steps
Check the methodology or contact us.
Methodology explains how the rules are encoded. Help covers product questions, outreach replies, and calculation corrections.