A date and identity utility for the BABYLON: Signalis RP server. It converts between the five original calendars from the game, plus three homebrew calendars, and generates Personenkennzahl numbers in the same format that appears on in-game documents and medical records.
Each colony keeps its own time, anchored to its own rotation, orbit, or atmospheric rhythm. The tool accepts any of them as input and shows every equivalent.
S.Pc.YY-PP-C.h:.k:.OO-B.C.s:.3000).
Personenkennzahl ("personal identification number") is the identity format
used throughout the setting. It encodes a person's name initials, birth
planet, and birthdate in a single string like YNGARN-L-5921D.
The format is LNMFNM-P-DDDDDD:
Eleven canonical PKZs appear in the in-game Medical Database. The generator's heuristic matches nine of them outright; the other three (Saskia Li, Nikolai Nguyen and Siegfried Yi) don't follow the same rule, so a small lookup table reproduces them directly.
The DDDDDD part is the birthdate in the birth planet's own
calendar, written compact with every number padded to a fixed width. The
Convert tab shows it on each row.
| Planet | Code | Skeleton | Date | Compact | Tail |
|---|---|---|---|---|---|
| Vineta | V | YYMMDD | 35/02/02 | 350202 | V-350202 |
| Rotfront | R | SSPPc | 18.6a | 1806a | R-1806a |
| Leng | L | YYPPC | 59-21-D | 5921D | L-5921D |
| Kitezh | K | YYMMDD | 52/07/02 | 520702 | K-520702 |
| Heimat | H | YYPPC | 59-21-3 | 59213 | H-59213 |
| Buyan | B | OOOBC | 96-6.3 | 09663 | B-09663 |
| Svarog | S | SSSrSH | 123-b.05 | 123b05 | S-123b05 |
Cycle letters: Rotfront a–d, Leng and Heimat hex
0–F, Svarog a–c. A pre-epoch Rotfront
date takes a leading minus in parentheses, e.g. R-(-0620a).
Most cross-calendar conversions produce a range of two possible dates because the calendars don't tick in lockstep. The tool annotates each line with the canonical value — the one that would appear on an in-game document — per the conventions derived from the eleven canon PKZs.
Important: “canon” here means “by our derived convention.” rose-engine never published a complete rule set; for novel characters the value the tool labels as “canon” is the best-fit answer, not an official one. Heimat shares Leng's canon format but has no dates of its own; Buyan and Svarog have no in-game canon at all. The bound conventions for all three are extrapolated by analogy with Leng and Kitezh.
Calendar math foundation by rlucine, from their "Timeline Deduction & Date Conversion Algorithms" on AO3. Heimat / Kitezh / Buyan / Svarog calendar constructions, PKZ generator, Penrose cycle verification, web port, and further refinements by merc.
This is an unofficial fan tool. SIGNALIS © rose-engine.
Join us on Discord at discord.gg/signalisrp for bug reports, feature requests, or general lore questions.
Enter a date in any supported calendar. Formats:
Vineta YY/MM/DD ·
Rotfront S.Pc (e.g. 18.6a) ·
Leng YY-PP-C ·
Heimat h:YY-PP-C ·
Kitezh k:YY/MM/DD ·
Buyan OO-B.C ·
Svarog s:SD-r.SH ·
Penrose 3000.
Each row also shows its PKZ segment — the planet code
and compact date that go after the name in a PKZ, e.g. L-5921D.
Compute the span between two dates in Vineta years/months/days. Any format works for either field — the older one auto-sorts to the “from” slot.
Add or subtract a quantity from any date. Syntax:
<date> + N<unit> or
<date> - N<unit>.
Units: d (days), w (weeks), m (months), y (years).
Input is converted to Vineta first; result is shown in every calendar.
Generate a Signalis-style Personenkennzahl. The tool proposes 2–4 LNMFNM
alternatives; pick one or supply your own override. Date is always entered as a
Vinetan birthdate YY/MM/DD and converted to the target planet’s calendar.