Earnings - this thread is about luxuries in relation to poverty, i.e. what are the absolute necessities, and when does something become a luxury. Obviously, apart from the very obvious things like food, shelter and warmth, whether or not you classify anything else as a "luxury" is subjective ..... you can also argue re: food, for example, that particular foodstuffs are luxuries compared to the minimum needed for survival and so on.
You say that having more time would be a luxury for you - but also say that you have "plenty" of money. I can therefore only assume that you must have significant demands on your time for either work or personal reasons, and I do appreciate therefore how you might wish there were more hours in the day. However, if you do have "plenty" of money which, as you say, allows you to have whatever you want (and that anything further would be "needy and grabby") you are obviously in a very fortunate position and although I know I'm making assumptions here, I'd guess that having "plenty" of money does allow you to, in effect, "buy" some time back for yourself - if you want - even if it's not as much time as you'd like.
By raising the issue of time though, you do bring something up which affects many people who are poor and/or struggling financially. I think that there's a misconception amongst some that being poor automatically equates to being unemployed, ergo, those people must have plenty of time. Of course, that's not necessarily true anyway but also overlooks the fact that many poor people are actually working - and, when they can get it, working as many extra hours as they possibly can for the chance of a little more money. Fact is, being poor can be terribly time consuming, so it's a double whammy ..... not only do you struggle to pay for basic necessities, you also have so little time that you don't even have the "luxury" of being able to read a good book or to take your kids to the park ....
.... if you're poor, food shopping can be terribly time consuming. You meal plan, work out a budget, and then potentially spend time checking prices and offers online before spending a penny. You don't have the convenience - and speed - of calling into one supermarket and chucking whatever you want into your trolley, job done. Instead, it's likely you'll visit several different shops (assuming you live somewhere where you have a choice) which takes yet more time. Once there, you check the "bargain corner" before doing anything else, and will also be scouring the shelves for offers and "manager's specials" that won't have been online. Often you find that what you budgeted isn't enough because yet again an item (or items) have gone up - so you have to think on your feet re: replacing it with something else more affordable. You also spend ages checking the so-called special offers - because labelling is so often crap and what initially seems like a good buy isn't. You do all this because you have to - because you're accounting for every £ - and it's time consuming.
If you're poor, and you can't afford public transport, or petrol for non essential journeys if you have a car (e.g. for work), you end up walking as much as you possibly can. Which, regardless of how good the exercise is for you, is time consuming. (... and of course your world utterly shrinks). Even if you can afford to use public transport sometimes, yet again you're hit by extra consumption of your time - because unless you live in a large city with very good transport links - it's unlikely that public transport will get you exactly from A to B - you'll undoubtedly have to spend more time walking at either end - and it's extremely unlikely that your journey will be exactly at the time you need it to be ...... or, for that matter, on time.
If you're poor, you'll be trying to minimise - obviously - any avoidable expense - which can mean that working couples end up doing opposite shifts to one another to reduce childcare costs as much as possible. Which means you can be like ships that pass in the night - for years on end - and have no time with which to nurture your relationship, no time to have even a short chat. You have all but no time to spend together as a family - the kids will rarely see their parents together. That sort of working pattern can be extremely damaging - especially so IMO to the adults' relationship .... it becomes "what relationship?" because there's no time for one.
If you're poor, you end up spending time, not money, on stuff which many better off people don't have to do. Instead of replacing household items that are falling to bits or not working properly, you endeavour instead to fix it yourself. Which admittedly can be rather satisfying when you succeed, but which often takes a large chunk of time if you don't know what you're doing, have to research beforehand and/or lack confidence or the right tools. Ditto DIY jobs that many people wouldn't think twice about calling a tradesman for that an expert could do in 15 mins but which takes you far far longer. And similarly, if you're poor, you will be far more likely to spend yet more time altering and/or mending clothes because you simply can't afford new - or secondhand - replacements. Chances are that when you do buy clothes for your kids you'll always get them as big as you can to extend the period they can be used for - but in doing so you'll also condemn yourself to many evenings taking hems up and down.
There are loads of other examples ........ making homemade presents because you can't afford to buy stuff in shops, spending longer cooking because cheaper ingredients often need more care and attention (e.g. it takes little time or skill to grill a steak or a piece of salmon, but making a stew takes longer), growing your own veg to try and save a bit of money, and many more - all these take time. And I fully appreciate that many people - who don't actually need to - may well choose to follow some of those ideas for the satisfaction of saving money and/or doing something yourself, but personally, I think there's a huge difference - psychologically - between choosing to be frugal, and being forced into it. If you choose to be thrifty, you have the reassurance and security of knowing that if, one day, you get fed up with it, or if you're ill, or if you need to be somewhere else, you can nonetheless jump into your car - or splurge on a time saving takeaway without it breaking the bank.
So yes - time is a huge luxury if you're poor. I fully accept that many people - whatever their finances - lack time, but clearly if you have no disposable income - at all - you'll never have the luxury of buying yourself time. Nor will you have the consolation of thinking, unlike someone who has no money worries, "well, I wish I had more time but at least I have a decent roof over my head, at least I can get myself from A to B in comfort and at my convenience, at least I can eat tasty and nutritious food, at least I can dress myself and my kids in a good standard of clothing".
One final thought re: having time and being poor is that very often you don't even have enough to sleep - with all the health issues that can bring. Either because you're working every hour you can to make ends meet, or, because if you're in the unfortunate position of having to worry about money all the bloody time it is almost impossible to ever relax properly and that means that when you go to bed, however tired you really are, you can lie there half the night fretting and in great anxiety because tomorrow will be yet another day when you don't have enough money, don't have enough time and you can't see an end to it.