---
title: "What are the differences between Phases and Milestones?"
description: "What are the differences between Phases and Milestones?"
url: https://support.mosaicapp.com/en/articles/329-what-are-the-differences-between-phases-and-milestones
collection: "FAQs and Common Actions"
updated: 2026-07-09
language: en
---

# What are the differences between Phases and Milestones?

What are the differences between Phases and Milestones?

Project Phases and Milestones are both essential in project management but serve different purposes. **Phases** represent stages of work that need to be completed, while **Milestones** mark significant events or achievements within the timeline.

**Phases** focus on tasks and progress, whereas Milestones act as key markers, helping track critical points and providing opportunities to review and adjust the project plan. **Phases allow for a date range, whereas Milestones are set to a single date.**

![](https://staticfiles.gleap.io/ghelparticle/hDnRbZKvet16UnWn9u2ikSz6iqTpgHNHrrzV8V0Gig2yJKJSj1MFY5dQG4yoWwwOibCW5nHyRIY.png)