---
type: "term"
title: "Bounded Δt"
description: "A minimum or maximum bound for Δt derived from known constraints when precise timestamps are unavailable."
resource: "tlctc:term:bounded-t"
tags:
  - "glossary"
---
# Bounded Δt

A minimum or maximum bound for Δt derived from known constraints when precise timestamps are unavailable. Notation: `Δt<15m` (upper bound), `Δt>15m` (lower bound), `Δt=10m..20m` (range).

**Reference:** §12.0.3, §12.2.3

**Related reading:** [tlctc-attack-velocity.html](https://www.tlctc.net/tlctc-attack-velocity.html)