21,211 Diamond Bus bus journeys followed to their destination across 71 days, 15 Aug 2026 to 24 Oct 2026. 65% arrived on time by the GB bus standard, and 18% arrived early.
That is about 299 journeys a day, 0.2% of all the bus journeys we followed on the same dates.
Its on-time share is 5 points below the 70% for every operator we followed on those dates. It ranks 26 of 71 operators with a page here.
Early and late running are roughly balanced, with 17% of journeys late, against 25% early and 6% late for every operator on the same dates.
Averaged across every journey, its buses arrived 1.7 min late, against 0.1 min early for all operators on the same dates.
Its best day was Tuesday, 18 August 2026, 74% on time over 275 journeys, and its worst Sunday, 16 August 2026, at 52% over 105.
Diamond Bus in numbers
Days covered
71
15 Aug 2026 to 24 Oct 2026
Journeys followed
21,211
0.2% of 8,972,755 on the same dates
…on time
13,721
64.7% · all operators 69.8%
…early
3,867
18.2% · all operators 24.5%
…late
3,623
17.1% · all operators 5.7%
…of which more than 15 minutes late
235
1.1%
Average arrival
1.7 min late
all operators 0.1 min early
Rank by on-time share
26
of 71 operators with a page
These are the 21,211 Diamond Bus journeys we followed to within 250 metres of their last
stop in the urban areas we sample, so they describe its running where we sample rather than on
every route it operates. On time, early and late add up to every journey; "more than 15 minutes
late" is part of late. How bus punctuality is measured and why so many buses arrive early.