Node Payment Interval Calculation
Reward Accrual Every 572 blocks
Typically, a node payment accrues approximately every day, For the purposes of this calculation, a day is considered to be every 572 blocks (24 hours / standard block time of 2.518 mins = 572 blocks). Due to extended block times there may be an occasional day in there is no payment listed.
This is the case for 25 March 2018. Payment Master details (https://securenodes2.eu.zensystem.io/pm/442/detail), reveal the start Block is 278912 with the date Saturday 24 Mar 2018 @ 22:56:44 GMT and an end Block of 279488 with the date Monday 26 Mar 2018 @ 00:20:27 GMT.
The difference between the start block and end block is 576 blocks and in this instance it has gone over a little longer than 24 hours. Hence the missing for 25 March 2018.
Payment To Staking Addresses
As of the date of this writing, 15 April 2018, payments are reviewed manually and paid in batches each week. This usually takes place on Monday or Tuesday.
Thanks to Johncarlo Maddalena (Unlicensed) for researching this issue.