Usable destination time instrument
Put in the trip.See how much trip you actually get.
Door-to-door accounting across movement, sleep, the Roomless Gap, and recovery. Cost per usable hour is the number The Money, Apparently can hold.
- Usable hours
- 43.5
- Calendar days
- 5
- In transit
- 17h 12m
- Per usable hour
- $65.29
Time ribbon
103h away collapses to 43h 30m usable. Overlays are honest layers, not a booking calendar.
Wed 15:50 leave · Sun 22:50 return · Europe/London
Transparent arithmetic
Calendar → movement → unavailable → usable
- Time away103h
Leave-home → return-home
- Movement (door-to-door)17h 12m
Every transition, with buffers
- Sleep22h 30m
Not freely usable
- Roomless gap6h 30m
Checked out, not yet in transit
- Recovery7h 30m
First-day settling
- Admin / luggage5h 48m
Not already inside movement
- Fixed obligations0h
User-entered holds
- Usable destination hours43h 30m
The number that matters
- One or more movement buffers are user overrides. House defaults remain documented in Method.
Compare layer
Same trip, different chain
Traditional search reports the fare. Trip Clock reports the hours. No universal recommendation.
Option B buys back 9.5 usable hours at $22.11/hour. +$210 total.
The Roomless Gap
Hours that exist without a room
Checkout until the next movement. Luggage, heat, children, no shower, no workspace. Surfaced, not solved — Stays and Things to Do own the pick.
Centro hotel
6h 30m
Sun 11 Oct, 10:00 → Sun 11 Oct, 16:30
Unchecked mitigations- Late checkout3h 54m · $85
Keep the room into the afternoon. The gap shrinks; you keep a private place to rest.
- Luggage storage1h 36m · $12
The hours still exist without a room, but they stop being a bag-drag. Not a replacement for a room.
- Day-use room6h · $140
A shower, a bed, a door that closes. The instrument does not book it — Stays does.
- Lounge or low-friction activity2h 18m · $45
Not a room. A chair, a socket, a bathroom. Surfaces the gap; Things to Do owns the pick.
Buy-Back Time
Ranked levers. Never “book this.”
Hours recovered and dollars per hour so the traveler can decide. Getting There, Stays, and Things to Do remain the owners of the booking.
01+6h late checkout
$14.17/h recovered
Hold the room through the afternoon. The Roomless Gap shrinks. Stays owns the booking.
Extra $85 · 6h
02+5h day-use room
$28/h recovered
A door, a shower, a place to put the bags down. Not a hotel night.
Extra $140 · 5h
03+3h closer airport
$15/h recovered
A nearer departure field cuts the origin transfer. Not always cheaper in fare; often cheaper in usable hours.
Extra $45 · 3h
04+2h 15m luggage storage
$5.33/h recovered
Does not create a room. It stops the gap from being a bag-drag, which is the difference between walking and waiting.
Extra $12 · 2h 15m
Day Shape
Not an itinerary generator
Paste a day you already have. The instrument inserts walks, queues, security, and coat-check. Six hours of activities become more hours away from the room.
Activities
6h 48m
Inserted
2h 54m
Away from room
10h 06m
6.8 hours of activities become 10.1 hours away from the room.
- Leave room · walk · queue37m
- Colosseum2h
- Coat-check reclaim8m
- Walk to next18m
- Queue / security · Pantheon18m
- Pantheon45m
- Walk to next18m
- Lunch in Trastevere1h 30m
- Walk to next18m
- Queue / security · Vatican Museums25m
- Vatican Museums2h 30m
- Coat-check reclaim8m
- Walk back to room22m
Live input console
Put in the trip you are considering
Movement · door-to-door
Scheduled times plus editable buffers. A 4h 12m flight routinely becomes an 8h 35m block.
Stays
Method plate
What is counted. What is not.
Formulas
- Time away = return-home − leave-home (absolute, TZ-aware)
- Door-to-door = scheduled ± pre/post buffers
- Sleep = stay nights × sleep hours, clipped to the room, minus overnight credit already inside movement
- Roomless = checkout → next movement, if ≥ 0.75 h
- Unavailable = sleep + roomless + recovery + admin + fixed
- Usable = max(0, time away − movement − unavailable)
- Cost / usable hour = trip cost ÷ usable hours (undefined at 0)
Assumptions
- Sleep defaults to 7.5 h from 23:00 local. Adjustable. Labeled “not freely usable,” never “wasted.”
- Overnight transport may credit a portion to sleep so the hours are not counted twice.
- Recovery and admin are placed into remaining free time after movement, sleep, and the gap.
- User buffer overrides never disappear. House defaults stay on this plate.
- Zero usable still shows the full arithmetic. The instrument fails closed on invented hours.
House default buffers
| Mode | Pre | Post | Source |
|---|---|---|---|
| Flight · domestic | 90 min | 35 min | TSA 2h recommend; bag-claim median 20–40 min. |
| Flight · international | 165 min | 70 min | Carrier 3h recommend; CBP + bags 45–90 min. |
| Train | 25 min | 10 min | Control + platform + exit walk. |
| Ferry | 40 min | 20 min | Operator check-in windows. |
| Drive | 15 min | 15 min | Parking search / return walk. |
| Transfer | 5 min | 5 min | Kerb / ticket gate only. |
| Walk | 0 | 0 | As scheduled. |
Deliberate exclusions
No destination recommendations, no hotel or flight booking, no itinerary generation, no restaurant lists, no live tracking, no packing lists, no weather, no document storage, no reviews. Those categories are already mature. Hand-offs into Places, Stays, Getting There, Things to Do, Fit Audit, and The Money, Apparently remain open.