There's a major Inland Revenue systems upgrade occurring this month. Their offices, phone lines and online services will be unavailable from 3pm on the afternoon of Thursday 18th April 2019 until 8am on the morning of Friday 26th April 2019.
So what does this mean for you as a FlexiTime user?
Payday returns can't be filed during this time, so they'll be queued in FlexiTime and filed automatically when IRD reopens. In the meantime their status will show as 'Pending'.