What is a synonym for by the time?

Here are some synonyms for "by the time," depending on the context and nuance you want to convey:

General:

* When

* Upon

* Once

* As soon as

* After

* Before (if the meaning is before a certain time)

More specific:

* At the time of

* Towards (if the meaning is approaching a certain time)

* Prior to (if the meaning is before a certain time)

* Upon reaching

* In the course of

Informal:

* By then

* By that point

* At that point

The best synonym will depend on the specific context of your sentence. Consider the meaning you want to convey and the tone you wish to set.