🚀 go-pugleaf

Jun 2001 LHR (London, UK)

       SR       SS
 1  04:49     21:08
 2  04:49     21:09
 3  04:48     21:10
 4  04:47     21:11
 5  04:47     21:12
 6  04:46     21:13
 7  04:45     21:14
 8  04:45     21:15
 9  04:44     21:15
10 04:44     21:16
11 04:44     21:17
12 04:43     21:18
13 04:43     21:18
14 04:43     21:19
15 04:43     21:19
16 04:43     21:20
17 04:43     21:20
18 04:43     21:21
19 04:43     21:21
20 04:43     21:21
21 04:43     21:22
22 04:43     21:22
23 04:44     21:22
24 04:44     21:22
25 04:44     21:22
26 04:45     21:22
27 04:45     21:22
28 04:46     21:22
29 04:46     21:22
30 04:47     21:21

Here is sunrise (SR) and sunset (SS) times for London for this month.

Well, I don't understand why the SR times remaining at a certain period
(from 12/6 to 22/6 ) where it is occurred earlier than the SS times
indicated (from the period 18/6 to 29/6 ) in the above data.

Actually,  I find that this situation happens in all cities throughout the
world. Why they (SS/SR times) don't come consistently in the sense that the
SS moves earlier whereas the SR moves later and then vice versa ? Is there
any meterological implication(s) on that situation ?

Can any meteorologist give me the answer in here ?


Thanks for the advice in advance.


Hugh