What makes the command journalctl -since "tomorrow"?

How to understand this systemd?
journalctl —since "tomorrow"
Do I understand it as a command to show messages starting tomorrow.
June 3rd 19 at 18:55
1 answer
June 3rd 19 at 18:57
Confused "Tomorrow?"

https://www.digitalocean.com/community/tutorials/h...

The journal also understands some relative values and named shortcuts. For instance, you can use the words "yesterday", "today", "tomorrow", or "now". You do relative times by prepending "-" or "+" to a numbered value or using words like "ago" in a sentence construction.
not much is not understood. If you can, please explain - Rene commented on June 3rd 19 at 19:00

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