firebase/database `serverTimestamp()` returns future time

### Operating System

Windows 11

### Environment (if applicable)

Chrome 142

### Firebase SDK Version

12.4.0

### Firebase SDK Product(s)

Database

### Project Tooling

Vue app w/ Vite

### Detailed Problem Description

We have two projects (dev/prd)

and `serverTimestamp()` records:

- correct time in dev project
- INCORRECT time in prd project (about 1 minute ahead)

`.info/serverTimeOffset` returns:

- small value in dev project
- large value (over 70000) in prd project

Is there a way to fix this large time offset? or shouldn't I trust firebase server timestamp?

### Steps and code to reproduce issue

https://gist.github.com/mmyoji/9475c30446cf5779bd9fae1a5f2eb5a0

Start by reviewing the linked reproduction gist and the Realtime Database behavior around serverTimestamp() and .info/serverTimeOffset. Compare the dev and production project conditions described in the issue and establish a reproducible test; done means determining whether the SDK produces the incorrect value or the production project's reported offset explains it.

Written by the indexing model from the issue text.