With your app, it seems daylight today in Chicago is the same length as yesterday's solstice, although it starts and ends 30 seconds later.

today - 07:18:59 → 16:24:29 = 9:5:30. yesterday - 7:18:23 → 16:23:53 = 9:5:30

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masfuerte 5 hours ago | parent [-]

Sunrise and sunset aren't in phase (or exactly out of phase). The latest sunrise and the earliest sunset don't happen on the same day and neither happens on the solstice. Not at this northern latitude anyway.

	▲	KineticLensman 2 hours ago \| parent [-]
		Where I am the sunset is already three minutes later than its earliest time but it will be another two weeks until the sunrises start getting earlier