The good days to buy or begin in London: Guru Pushya, Ravi Pushya, Amrit Siddhi, Sarvartha Siddhi, Dwipushkar and Tripushkar yoga, with their timings.
Tuesday, 1 July5:51 AM - 4:48 AM, 2 Jul · Tripushkar · Uttara Phalguni nakshatra
Wednesday, 2 July6:37 AM - 4:48 AM, 3 Jul · Sarvartha Siddhi · Hasta nakshatra
Saturday, 5 July4:50 AM - 3:21 PM · Sarvartha Siddhi · Swati nakshatra
Sunday, 6 July4:45 PM - 6:12 PM · Tripushkar · Vishakha nakshatra
Monday, 7 July4:52 AM - 8:41 PM · Sarvartha Siddhi · Anuradha nakshatra
Friday, 11 July2:06 AM, 12 Jul - 4:57 AM, 12 Jul · Sarvartha Siddhi · Shravana nakshatra
Saturday, 12 July4:57 AM - 2:23 AM, 13 Jul · Sarvartha Siddhi · Shravana nakshatra
Tuesday, 15 July1:16 AM, 16 Jul - 5:02 AM, 16 Jul · Sarvartha Siddhi · Uttara Bhadrapada nakshatra
Thursday, 17 July5:03 AM - 5:04 AM, 18 Jul · Sarvartha Siddhi · Revati, then Ashwini nakshatra
Friday, 18 July5:04 AM - 9:44 PM · Sarvartha Siddhi · Ashwini nakshatra
Monday, 21 July5:08 AM - 5:09 AM, 22 Jul · Sarvartha Siddhi · Rohini, then Mrigashira nakshatra
4:37 PM - 5:09 AM, 22 Jul · Amrit Siddhi · Mrigashira nakshatra
Thursday, 24 July5:12 AM - 5:13 AM, 25 Jul · Sarvartha Siddhi · Punarvasu, then Pushya nakshatra
12:13 PM - 5:13 AM, 25 Jul · Amrit Siddhi · Pushya nakshatra
12:13 PM - 5:13 AM, 25 Jul · Guru Pushya · Pushya nakshatra
Wednesday, 30 July5:21 AM - 5:23 PM · Sarvartha Siddhi · Hasta nakshatra
Guru Pushya is Thursday in Pushya nakshatra, Ravi Pushya is Sunday in Pushya. Amrit Siddhi is a weekday in its own nakshatra (Sunday Hasta, Monday Mrigashira, Tuesday Ashwini, Wednesday Anuradha, Thursday Pushya, Friday Revati, Saturday Rohini). Sarvartha Siddhi is a weekday in one of its favorable nakshatras. Dwipushkar and Tripushkar fall on a Sunday, Tuesday or Saturday with Dwitiya, Saptami or Dwadashi tithi and a particular nakshatra; what is begun in them is said to repeat, so anything that could bring a loss is avoided. A weekday runs from sunrise to the next sunrise.
Times are local to London. A day runs from sunrise to sunrise, so a window after midnight belongs to the date above it.