What time does it usually dawn in March?

It is usually sunrise at 6: 00 and sunset at 18: 00. Before the vernal equinox, the days in the northern hemisphere are short and the nights are long, so the sunrise is later than 6: 00 and the sunset is earlier than 18: 00. The days in the southern hemisphere are long and the nights are short, so the sunrise is earlier than 6: 00 and the sunset is later than 18: 00. Day and night are equal in length on the equator, with sunrise at 6 o'clock and sunset at 18 o'clock.

At the vernal equinox, the direct point of the sun is on the equator, and the seasons in the northern and southern hemispheres are opposite. The northern hemisphere is the vernal equinox and the southern hemisphere is the autumnal equinox. Since then, the direct point of the sun has continued to move northward, so the vernal equinox is also called the rising equinox. At the vernal equinox, theoretically, the world is as long as day and night (see the dawn). After the vernal equinox, the days in the northern hemisphere are long and the nights are short, while the days in the southern hemisphere are short and the nights are long.

At the vernal equinox, there are no extreme days and nights in the world. After the vernal equinox, it began to be extremely daytime near the North Pole, and its scope gradually expanded. Near the Antarctic, the extreme day ends and the extreme night begins, and the scope gradually expands.

Extended data:

The solstice in summer is the longest day and the shortest night in the northern hemisphere. On the day of the summer solstice, except the south pole of the Antarctic circle and the polar night area, the sunrise direction in all parts of the earth starts from the northeast and sets in the northwest.

Take Beijing as an example. In summer solstice, dawn begins at 2:42 am and gets up at 4:45 am. At night 19:46, 2 1:49 it was completely dark.

If we continue to go north, the night will be further shortened. In Nordic cities such as Stockholm, Helsinki and Oslo, the midnight sky is still bright, so you can read books under the night sky. When we reach the area north of 66.4 north latitude, we can see the midnight sun, which we think is a miracle. People there can enjoy sunbathing 24 hours a day.

Around the summer solstice, the earth is located near the perihelion, and its running speed is slightly slower, resulting in the sun spending 8 days more in the northern hemisphere than in the southern hemisphere in a year, so the summer in the northern hemisphere is slightly longer.