Google Sheets SORTN for Maximum Date

	B	C	D	E	F	G	H	I	J	K	L	M	N	O	P	Q	R
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3	Ref No	Account Number	Created at date and time	Title	First Name	Last Name	Last test date	Recall period		Ref No	Account Number	Created at date and time	Title	First Name	Last Name	Last test date	Recall period
4	24	50024	2008-10-04 14:03:00	Mr.	Name 1	Name 2	03/07/2012	24 Months		24	50024	2008-10-04 14:03:00	Mr.	Name 1	Name 2	03/07/2012	24 Months
5	27	171673	2012-04-23 10:10:54	Mr.	Name 2	Name 3	04/07/2012	24 Months		28	171673	2012-04-23 10:10:54	Mr.	Name 3	Name 4	15/10/2014	24 Months
6	28	171673	2012-04-23 10:10:54	Mr.	Name 3	Name 4	15/10/2014	24 Months		34	172801	2012-05-05 11:27:46	Mr.	Name 9	Name 10	4/7/2012	24 Months
7	29	175884	2012-06-12 15:02:31	Mr.	Name 4	Name 5	04/07/2012	24 Months		30	175884	2012-06-12 15:02:31	Mr.	Name 5	Name 6	15/11/2015	24 Months
8	30	175884	2012-06-12 15:02:31	Mr.	Name 5	Name 6	15/11/2015	24 Months		31	175968	2012-06-13 15:04:36	Mr.	Name 6	Name 7	04/07/2012	24 Months
9	31	175968	2012-06-13 15:04:36	Mr.	Name 6	Name 7	04/07/2012	24 Months		33	176661	2012-06-23 12:52:22	Mr.	Name 8	Name 9	19/07/2012	24 Months
10	32	176661	2012-06-23 12:52:22	Mr.	Name 7	Name 8	04/07/2012	24 Months
11	33	176661	2012-06-23 12:52:22	Mr.	Name 8	Name 9	19/07/2012	24 Months
12	34	172801	2012-05-05 11:27:46	Mr.	Name 9	Name 10	4/7/2012	24 Months
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14									https://stackoverflow.com/a/60290880/5632629
15									if this helped you pls accept the answer
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