Chapter 11
Server Clock & Schedules
When do salaries get paid? When is FBO fuel restocked? When are weekly fees charged? This chapter lists every recurring event that affects your company, in plain language.
TL;DR — the key pointsAll times in this chapter are UTC. The OnAir server always runs on UTC.
Converting to your local time: New York (winter, UTC−5) → subtract 5 h · Paris (winter, UTC+1) → add 1 h · Sydney (summer, UTC+11) → add 11 h
11.1 How the scheduler works
The server runs automated tasks continuously in the background. Two types exist:
| Type | How it fires | Example |
|---|---|---|
| Recurring | Every few minutes or hours, non-stop | "Maintenance progresses every 15 min" |
| Scheduled | Once a day or once a week at a fixed UTC time | "Salaries paid every day at 05:00 UTC" |
These tasks run regardless of whether you are online.
11.2 The 5 questions players ask most
| Question | Answer |
|---|---|
| When are salaries paid? | Every day at 05:00 UTC |
| When are aircraft ownership & parking fees charged? | Every day at 05:15 UTC |
| When are FBOs restocked and FBO ownership fees charged? | Monday at 04:45 UTC (same restock Friday at 04:45 UTC) |
| When are loans checked for missed payments? | Every day at 04:45 UTC |
| When are overdue missions auto-declined? | Every day at 05:45 UTC |
11.3 Short-interval tasks (minutes)
These run throughout the day. After any of these intervals, a page refresh will show updated results.
| Every… | What you see change |
|---|---|
| 1 min | Aircraft in transit, warp or tarmac work progress. Warped flights get registered. |
| 1 min | Outsourced cargo/charters you missed are marked expired. |
| 1 min | FBO constructions finish; fuel orders are delivered. |
| 1 min | Expired outsource listings are removed from the market. |
| 1 min | Old completed missions are purged from your history. |
| 2 min | One pending aircraft-type moderation request is processed. |
| 3 min | Employee and mechanic states update (training done, fatigue recovered, freelance availability). |
| 3 min | Factories produce goods; inactive factories are archived. |
| 5 min | Pending work orders execute; expired ones are deleted. |
| 5 min | The multiplayer map refreshes. |
| 5 min | Expired unclaimed missions are deleted. |
| 5 min | Recurring hangar storage fees are charged. |
| 5 min | Airport ownership rankings refresh; expired boosts are removed. |
| 5 min | Industry merchandise transports arrive at destination. |
| 10 min | Stuck flights are automatically repaired. |
| 10 min | Rolling 1-month company reports are regenerated. |
| 10 min | Weekly factory maintenance fees are calculated. |
| 15 min | Maintenance progresses — mechanics advance on aircraft in the workshop. |
| 20 min | Weather (METAR) refreshes for all airports. |
| 60 min | Aircraft lease payments are processed. |
| 60 min | Industry supply & demand levels are recalculated; stale contracts expire. |
Maintenance note: Mechanics advance every 15 minutes. If your mechanic appears to be working but nothing has changed, wait 15 min before worrying.
11.4 Daily tasks (UTC)
All daily tasks fire in the 04:45–07:00 UTC window — late night in the Americas, early morning in Europe.
| Time (UTC) | What happens |
|---|---|
| 04:45 | Loans are checked for missed payments; inactive companies are auto-paused. |
| 05:00 | Eligible employee salaries are checked and paid when their payment interval is due (§8.5). |
| 05:15 | Aircraft ownership fees, parking fees are charged; overdue rentals are terminated. |
| 05:45 | Unpaid missions more than 15 days past expiry are automatically declined. |
| 06:00 | Aircraft-type statistics are regenerated. |
| 07:00 | Tour completion stats are recomputed. |
Budget tip. The three fee tasks fire back-to-back: 04:45 → 05:00 → 05:15 UTC. Make sure your cash balance at 04:45 UTC can absorb loan check + salaries + aircraft fees within a 30-minute window.
11.5 Weekly tasks (UTC)
| Day | Time (UTC) | What happens |
|---|---|---|
| Sunday | 00:00 | Next week's Regular Route block is scheduled. This is the start of the "routes week". |
| Monday | 04:45 | System FBOs are restocked with fuel; FBO owners are charged the weekly ownership fee. |
| Monday | 05:00 | All leaderboards are rebuilt. |
| Monday | 05:15 | System aircraft go to maintenance; aircraft asset values refresh. |
| Monday | 06:00 | VA member salary distribution is paid. |
| Wednesday | 03:30 | Historical flight data is consolidated onto each aircraft (stats refresh). |
| Wednesday | 04:30 | VA shareholder asset values are updated. |
| Wednesday | 06:00 | Weekly company management fee is charged (Challenge Mode only — see the Economy chapter). |
| Friday | 04:45 | Same system-FBO restock as Monday: stock below half capacity is refilled to 50-100 %; other stock is unchanged. |
Monday schedule. These tasks have staggered start times. That timetable does not guarantee that one has finished before the next starts; check the relevant account or page for completion.
Routes week = Sunday → Sunday. If you edit a Regular Route, the change takes effect the following Sunday at 00:00 UTC when the weekly block is rebuilt.
11.6 Network ports — technical reference
The server is three separate processes that communicate with each other. Useful if you are troubleshooting a connectivity issue.
| Service | Protocol | Port | Role |
|---|---|---|---|
| World (real-time) | TCP | 11000 | Live broadcasts (aircraft positions, chat, etc.) |
| World (sim bridge) | WebSocket | 11001 | Live SimConnect data channel |
In production, game server and auth use HTTPS on server1.onair.company and auth.onair.company — no raw port is exposed.
11.7 TL;DR — the dates to remember
- Every day at 05:00 UTC → salaries checked; eligible payments are made when due.
- Every day at 05:15 UTC → aircraft ownership & parking fees.
- Monday 04:45 UTC → FBO weekly fee + fuel restock.
- Wednesday 06:00 UTC → company weekly management fee (Challenge Mode only).
- Friday 04:45 UTC → system FBO fuel restock (below half capacity only).
- Sunday 00:00 UTC → regular routes rebuilt for the coming week.
- Maintenance progresses every 15 min — not instantly.