Unable to use decimal values as startDate in Gantt diagram

[tcm0116]

Description

According to the Input data format documentation for the Gantt diagram, decimal values should be honored when using Unix timestamps (X) as the dateFormat. However, attempting to do so yields an invalid result.

Steps to reproduce

1. Paste the code sample below into the Live Editor
2. No task bars are displayed
3. Remove the tasks in section S1
4. Tasks 3 and 4 are properly displayed

Screenshots

Code sample as provided:

Code sample with Task 1 and Task 2 removed:

Code Sample

gantt
    title A Gantt Diagram
    dateFormat X
    Section S1
    Task 1 : 0.1, 0.2
    Task 2 : 1.1, 0.4
    Section S2
    Task 3 : 0, 200ms
    Task 4 : 1, 400ms

Setup

• Mermaid version: v10.7.0+b91624c
• Browser and Version: Chrome for Linux Version 120.0.6099.224 (Official Build) (64-bit)

Suggested Solutions

No response

Additional Context

No response