Gregorian Real-Time Timeline

A date-accurate interactive timeline. Scroll to zoom, drag to pan, click items to edit. Everything saves locally in this browser.

Add / Edit Item

Title Type

Start date/time

End date/time Auto-update end to present

Layer / category

Color

Opacity

Brightness

Description

“Add item” always creates a new item. It never replaces another one. Click an existing item, edit fields, then use “Update selected” only when you intentionally want to change it.

View Controls

Positions are calculated from exact Gregorian timestamps. Zoom controls how much time each pixel represents.