spät
late
Describes a point in time that is after the expected, usual, or agreed time.
Er kam wie immer zu spät zur Besprechung.
As always, he came late to the meeting.

late
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late
Describes a point in time that is after the expected, usual, or agreed time.
Er kam wie immer zu spät zur Besprechung.
As always, he came late to the meeting.

The adjective 'spät' (late) is the core of the word family around the topic of time. The verb 'sich verspäten' (to be late) and the noun 'die Verspätung' (delay) are derived from it.
Ich fürchte, ich werde mich heute um 10 Minuten verspäten.
I'm afraid I'll be 10 minutes late today.
To express that something happens after the right or possible time, 'spät' (late) is very often combined with 'zu' (too). The phrase 'zu spät kommen' (to come too late / to be late) is especially common.
Für eine Entschuldigung ist es jetzt zu spät.
It's too late now for an apology.
The comparative form 'später' means 'at a future point in time' or 'later.' It is used very frequently in everyday life, especially in the farewell phrase 'Bis später!' (See you later!).
Ich kann jetzt nicht telefonieren, ich rufe dich später zurück.
I can't talk on the phone now; I'll call you back later.
To describe an advanced part of a day, 'spät' (late) is placed as an adjective before a time expression. Typical combinations are 'am späten Nachmittag' (in the late afternoon) or 'am späten Abend' (late in the evening).
Die Party begann erst am späten Abend.
The party didn't start until late in the evening.
early
'spät' and 'früh' both describe points in time, but they point in opposite directions. 'spät' means a point in time after the normal or agreed time, or an advanced part of a period of time. 'früh' means the beginning of a day or period, or a time before what is expected. For appointments, 'früh' often means before the agreed time; 'spät' means after the agreed time. For times of day, 'früh' is more likely to mean in the morning, while 'spät' is more likely to mean in the evening or at night.

Yara kommt in der Pause zu spät zum Termin.
Yara arrives late for the appointment during the break.
Ali beginnt früh mit dem Lernen, weil er am Wochenende frei haben möchte.
Ali starts studying early because he wants to have the weekend free.