The snapshot of NEO balances across all accounts will occur at block height 1,974,823 on the NEO blockchain at approximately 21:00, Mar 1, 2018, UTC+8 (exact time may change depending on when the block occurs).
For each NEO an individual will receive 0.2 ONT (50% is freely tradable and the other 50% is automatically locked until the release of Ontology MainNet in Q2 2018).
Delivery of the first portion of ONT will be completed in the weeks following March 1, 2018 (0.1 ONT per NEO). The other locked half (0.1 ONT per NEO) will be using the same snapshot, but will instead be airdropped after the release of Ontology MainNet in Q2 2018. Further details have not yet been announced.
For Airdrop procedure and distribution details, please refer to the announcement by Ontology and the NEO Council here:
https://medium.com/ontologynetwork/the-neo-council-airdrop-faq-4b1694928373
