For 08:15 to 18:40 would have as a guess 09:00 to 16:30 at best. Depends on your risk tolerance
Considered Windsor Castle?- 12 miles from LHR
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https://www.windsor.gov.uk/
https://www.windsor.gov.uk/visitor-i...n/getting-here
https://www.windsor.gov.uk/visitor-i...-here/by-plane
Travelling to Windsor from Heathrow Airport
By bus
Fast, convenient transfers are available between
Heathrow's terminals. Terminals 2 and 3 are a short walk from each other. Terminals 4 and 5 are served by free trains and buses.
The
Green Line 703 provides a new fast and direct link between Bracknell, Windsor and Heathrow Terminal 5.
First Group's bus service 8 operates a direct service between Heathrow Terminal 5 and Windsor town centre with departures up to every 30 minutes. Journey time is up to 1 hour.
First Group's bus service 7 operates up to every 10 minutes between Heathrow Terminal 5 and Slough. Change at Slough onto
First Group's bus service 4 for Maidenhead, operating up to every 30 minutes. Total journey time is up to 1 hr 15 minutes.
Edit
The shortest day of the year falls on Saturday 21st December 2024. This date marks the day in the year with the fewest hours of daylight. "The winter solstice occurs for us once per year, usually on the 21st or 22nd of December.
How long is the shortest day in the UK?
7 hours and 49 minutes
The shortest day of the year lasts 7 hours and 49 minutes. This is 8 hours and 49 minutes shorter than the summer solstice. On the shortest day, the sun will set at 3:56 pm. "The sun rises and sets at slightly different times depending on where you are in the UK, so that's worth bearing in mind," says Josh.28 Nov 2024