Calculator — Dark Obsidian

Generate Birth Chart

Same birth data flow as Chart Form: submit to open the computed chart (new page).

Birthplace

Enter City, State/Country and we'll geocode it automatically.

Timezone will appear here after place lookup.

Birth Date

Birth Time (Optional)

If unknown, the app defaults to 12:00 local time.

Timezone (IANA)

If auto-detection does not fill this, choose one from the dropdown.