Question 1

How are these times calculated?

Accepted Answer

We use an NOAA-style approximation and show times in Europe/Bucharest. At extreme latitudes there may be no sunrise/sunset.

Question 2

Why can they differ from other sites?

Accepted Answer

Differences come from formulas, altitude, refraction, and rounding. Values are approximate and useful for planning.

Question 3

Which timezone are times in?

Accepted Answer

Times are shown in Europe/Bucharest.

Date	10 February 2026
Weekday	Tuesday
Public holiday	—
Orthodox	†) Sf. Sfințit Mc. Haralambie; Sf. Mc. Valentina

Sunrise & sunset today — Lisbon

Today's summary