when will it start staying lighter longer

It starts staying lighter longer just after the winter solstice in late December, and you really begin to feel the difference from January into February as the added minutes of daylight stack up.

What “staying lighter longer” really means

When people ask “when will it start staying lighter longer,” they’re usually noticing how early it gets dark in late fall and early winter and wondering when evenings will stop feeling so short.

Astronomically, this is tied to the winter solstice, the shortest day of the year, after which daylight slowly increases.

Key dates and phases

• In the Northern Hemisphere, the winter solstice falls around December 21–22 each year.

• From the day after the solstice, total daylight time begins to increase a little bit each day.

• By late January and especially through February, many places gain close to an hour more daylight compared with the solstice, so evenings clearly feel lighter longer.

So the emotional answer: it starts right after the solstice, but it becomes clearly noticeable a few weeks into the new year.

Why it happens

• Earth is tilted about 23.5 degrees on its axis, so in winter the hemisphere you live in leans away from the Sun, giving shorter days and lower midday Sun.

• As Earth moves along its orbit after the solstice, your hemisphere slowly tilts back toward the Sun, lengthening both mornings and evenings until the summer solstice around June 20–21.

How fast it gets lighter

• Around mid‑latitudes, daylight can increase on the order of a couple of minutes per day after the solstice, adding roughly an extra hour or so of daylight month by month in deep winter and early spring.

• This increase continues until around the June summer solstice, when you reach the longest days and latest sunset times of the year.

TL;DR: It technically starts getting lighter right after the winter solstice in late December, and by January–February you can really tell the evenings are stretching out.

Information gathered from public forums or data available on the internet and portrayed here.