XEM deposits and withdrawals will be suspended starting from 2021/01/14 04:00 AM (UTC).
We will take a snapshot of XEM tokens held by Binance users at the above time, and will distribute XYM tokens at a ratio of 1 XEM = 1 XYM.
Deposits and withdrawals will be reopened after the snapshot has been completed.
Please note that trading of XEM will not be affected during the airdrop.

This confuses me. They are stating that they will take a snapshot @ 04.00AM UTC. This doesn't match the official snapshot time of ~ 11.00am UTC or more specifically block 3025200.

Ps. If you have a limit order open, are you included in the snapshot?
They say "XEM balance under 100 XEM (including those in trade orders) will not be eligible for the airdrop.". Does it mean trade orders under 100 XEM or all trade orders?