If you had 920 hours but claimed 1000 hours during the application process and then attended an interview where they're likely to check your logbook, you'll be caught out. Additionally, some application processes require you to scan the last two or three pages of your logbook so you have no choice but to state your actual hours. My view is to say exactly what you have, mention the likelihood of having a 1000 hours shortly, then hope that the recruitment people can work it out.