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From the Codex of Ultimate Wisdom

Time

A folio of the realm

Time

Time in SosariaBritannia's broader world — is the canonical in-game time system that governs day/night cycles, Event timing, Animal Taming bonding cycles, Powder of Fortifying durability windows, and dozens of other temporal mechanics. The world operates on a 24-hour Sosarian day that compresses into roughly 2 real-world hours — twelve Sosarian days unfolding within each twenty-four real-world hours of play. The day-night cycle drives ambient lighting, certain monster spawns (some creatures appear only at night), and the canonical Night Sight mechanic that lets players see clearly in dark dungeons or after sundown.

Beyond the visual day-night cycle, Time governs many player-facing cooldowns and durations — the seven days of pet bonding, the cooldown between BOD requests, the seasonal-event windows, the spell-buff durations, and the canonical "X minutes until Y" timer interfaces in many gumps.

The Sosarian day

Time element Detail
Day length 24 Sosarian hours
Real-world equivalent ~2 hours of play
Sosarian days per real day ~12
Daylight duration ~18 Sosarian hours (6 AM to midnight)
Night duration ~6 Sosarian hours (midnight to 6 AM)

The compressed day-night cycle is canonical to UO — a player who logs in for a full evening session sees multiple complete day-night cycles unfold within their play time. The cycle is synchronized across all facetsTrammel, Felucca, Malas, Tokuno, and Ter Mur experience the same time.

Day-night ambient lighting

Time of day Ambient effect
Dawn (~6 AM) Sky brightens; mob spawns shift
Noon (~12 PM) Maximum brightness; outdoor visibility unrestricted
Dusk (~6 PM) Sky reddens; some night-creature spawns begin
Midnight (~12 AM) Maximum darkness; Night Sight becomes valuable
Pre-dawn (~5 AM) Stars visible; dungeon visibility reduced

In dungeons, Time has no effect on lighting — dungeons are permanently dark regardless of Sosarian time. Only outdoor zones experience the day-night cycle.

Time-tied mechanics

Mechanic Time component
Animal Taming bonding 7 real-world days from tame
Pet feeding decay Pets need food approximately daily (real-time)
House decay Plot maintenance fees due monthly
Murder count expiration Reds expire over real-time
BOD cooldown Hours between BOD requests
Spell buff durations Variable; many spells last seconds-to-minutes
Seasonal event windows Multi-day to multi-week real-world windows
Anniversary cycle Annual September date
Skill use cooldowns Per-skill cooldowns measured in seconds

Many of these are real-world time rather than Sosarian time — the engine tracks both real time (for things that should compute correctly even if a player logs out) and Sosarian time (for in-game ambient effects).

Server uptime and shard time

Each shard has a canonical server time that tracks real-world time. Server-time events:

Event Server time tracking
Server boot Resets ambient state; some daily-cycle events
Daily reset Some BOD cooldowns reset at server boot
Weekly events Specific days of the week have event spawns
Monthly maintenance Server downtime windows
Annual events Real-world calendar events

Shard time is roughly synchronized across the UO universe — Atlantic shard time matches Pacific shard time for purposes of cross-shard event coordination.

Time and PvP

In Felucca PvP, Time matters in subtle ways:

Time impact Detail
Hidden-detection Some Tracking and Detect Hidden effects scale with Sosarian time
Spawn intensity Some champion spawn waves shift by Sosarian time
Faction stronghold timers Faction control measured in real-world hours/days
PvP cooldowns Resurrection, Powder of Fortifying, etc. measured in real time

The canonical PvP veteran knows the timing of various cooldowns — knowing exactly when an opponent's heal spell will be off cooldown, when a Powder of Fortifying can re-apply, etc. Time-management is canonical PvP skill.

Time scaling for buffs and debuffs

Effect Duration
Magery buff (e.g., Bless) Variable; up to ~30 seconds at high skill
Magery debuff (e.g., Curse) Variable; up to ~30 seconds
Necromancy form (e.g., Lich Form) Persistent until form-shift
Chivalry buff (e.g., Divine Fury) Variable; up to ~10 seconds
Bard mastery buff 30 — 60 seconds
Potion effect Variable; some 5-minute durations

Spell durations are scaled by skill — higher Magery means longer Bless duration, etc. Time-based buffs are central to combat tempo.

Time in the linkifier

Note: the word "time" in prose appears in countless contexts unrelated to game-time mechanics ("at the time of the kill", "casting time", "timing" of attacks, etc.). The linkifier has been configured to skip generic "time" matches; only specific contextual references resolve to /codex/Time directly. This keeps the inline link graph clean.

Time and player-character lifetime

Lifecycle Real-world time
Skill from 0 to GM Variable; weeks-to-months for some skills
Skill from GM to 120 Hours of Power Scroll grinding
Pet from tame to bond 7 days
Plot establishment Variable; days of preparation
Veteran tier accumulation Years of subscription time

Veteran tier rewards are tied to subscription length — months and years of paid playtime. Vet rewards are the canonical "old player" recognition.

Astronomical observations in Sosaria

The Sosarian sky has canonical astronomical features:

Feature Detail
Moons Two moons in the Sosarian sky
Sun Visible during day cycle
Star pattern Canonical constellations referenced in lore
Comet appearances Periodic narrative comet sightings (rare)

The two-moon symbology is canonical — Trammel and Felucca are named after the two moons of Sosaria, with the Renaissance-era split positioning the moons' worlds as parallel realities.

See also

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Folio inscribed by the Scribe  ·  merge  ·  2026-05-14
Folios in the Codex incorporate material adapted from community-maintained Ultima Online wikis, used under the Creative Commons Attribution-ShareAlike 3.0 License. Synthesised, restructured, and rebranded by the Scribe.