Steampunk Stardate Calculator · Chronometric Guild Edition

Generate Your Stardate

Current Stardate

1748.5

Progression Number Time of Day (0-9)

Setup

Format Name Base Year

Reference Table

Stardate	Meaning	Example Use
1748.0	Midnight, story begins	Opening log entry
1748.5	Noon, central scene	Main event
1748.3	Next day, morning	Progression

Understanding the Time-of-Day Dial (0–9)

The Chronometric Guild divides each day into ten equal segments instead of using hours. This keeps Stardates compact, elegant, and easy to track across your narrative.

Each digit from 0–9 represents a distinct phase of the day:

Decimal	Time of Day	Meaning
0	Midnight	Start of the new Stardate
1	Early Morning	Pre-dawn, lamps still lit
2	Morning	Sunrise and early activity
3	Late Morning	Workday fully underway
4	Midday Approaching	Late-morning bustle
5	Noon	High sun; common log entry time
6	Afternoon	Shops and workshops in full clatter
7	Late Afternoon	Lengthening shadows
8	Evening	Lamps lit; day winds down
9	Late Evening	Quiet hours before the next Stardate

Quick Rule of Thumb

Dark scenes → choose 0 or 9
Daylight scenes → choose 2–7
Noon or pivotal moments → choose 5
Transitions between day parts → pick the number between them

Example Interpretations

1748.0 — Midnight at the beginning of Day 1748
1748.5 — Noon on Day 1748
1749.8 — Evening of the next day
1750.3 — Late morning, two days later

Why this system? The Guild’s decimal-day model mirrors a thermometer: simple to read, impossible to misuse, and perfect for fast-paced storytelling.