Help anyone... I need help with an abnormal EURUSD spread surge outside of trading hours!!!

Hello everyone, I recently experienced an issue with my broker regarding an abnormal spread spike on the EURUSD pair, and I need advice or insights from the community.
Here are the details of the situation:

  1. My broker’s typical spread for EURUSD is around 2.7 pips.

  2. On the MT4 platform, between 23:59 and 00:02 (server time), the broker restricts trading.

  3. However, during this period, I noticed that the spread increased abnormally to as high as 20–23 pips.

  4. There were no geopolitical events or economic news releases at that time that could justify such an increase.

  5. It was also not during Monday’s market opening, which might normally explain wider spreads.
    I contacted the broker about this issue, and they asked me to provide comparative spread data from other brokers during the same period. Unfortunately, as most of you know, individual clients like me cannot easily access historical spread data from other brokers.

My Questions: 1. Is there any tool, platform, or indicator that allows gathering historical spread data for EURUSD from multiple brokers? 2. Has anyone else encountered a similar issue where spreads spike unreasonably during restricted or non-trading hours? 3. What would be the best approach to address this issue with my broker? I would appreciate any insights, advice, or guidance you can share. Thank you!

Where are you located?
At the end of the NY session (5pm) most fx brokers halt trading for a few mins and spreads widen considerably. Some brokers widen them more than others, but unfortunately, it is standard practice

I am located in South Korea. The issue did not occur at 5 PM but rather between 23:58 and 00:03 (GMT+2). While the trading halt period may vary between brokers, in my case, this time overlapped with both the market opening and the trading halt period. Is it normal for the spreads to widen this much in such a situation?