Keep a lamp still and slowly rotate a globe west to east. A sticker on the lit side represents daytime. When the sticker turns to the unlit side, it represents night. Sunrise is entry into sunlight; sunset is departure from it.

Different places face the Sun at different times. Broadly, places farther east reach their daylight cycle earlier. Exact sunrise times also depend on latitude, season and terrain. Earth’s revolution is not the cause of the daily cycle.

In December, the Northern Hemisphere has winter while the Southern Hemisphere has summer. Both belong to the same Earth at almost the same distance from the Sun. Tilt and daylight explain this contrast.

Seasons do not give every place the same weather. Latitude, height, winds and nearby seas matter. Near the Equator, day length changes relatively little; rain patterns may be more noticeable than temperature changes.

Earth comes between the Sun and Moon. A total lunar eclipse occurs when the whole Moon is inside Earth’s dark central shadow; a partial one covers only part. Many people on Earth’s night side can see it if the Moon is above their horizon.

During a total eclipse, some sunlight passes through Earth’s atmosphere and bends towards the Moon. Much of the blue light is scattered away, leaving reddish light. A lunar eclipse can be watched with the unaided eye; it is not the same eye hazard as viewing the Sun.