Harlington to Bethnal Green, possibly a Travelcard, for tomorrow

[Ladder23]

For Harlington, to Bethnal Green tomorrow late morning with a return early afternoon, ideally I wanted to tour London for shopping but I cannot understand the travel card pricing via the website.

any help is much appreciated

 

[A Challenge]

An Off Peak Day Travelcard from Harlington to London Zones 1-6 is £30.80 for an undiscounted (valid to arrive London Terminals after 10:00), and a Super Off Peak Day Travelcard is £25.40, valid from Harlington after (inclusive of, I think that is a train then) 09:24, but not valid to return on trains leaving London St Pancras International between 16:29 and 19:01 (exclusive), though is valid on journeys wholly inside the zones during this time.