i got this ask thru twt/strawpage but im gonna answer it here first bc i need to lay out my thoughts without cutting them into tweets.
i dont think there is any one trick, it's actually a bunch of tricks stacked together. you as an author have to really think about the passage of time and the rhythms of human behavior. do you want to convey the idea that no time passed at all? or that hours passed? or days? or even years? when you have to cover a long period of time, the two mainstays are to describe that period, or just say "years passed." but the middle road of sorts (that i take) is to think about the person youre writing and their relationship to that span of time that passed.
It was only a week; the days dragged their heels as though chained. Interminable hours of meetings, stale coffee and the humidity that gathered inside a suit when it was worn too long; interminable hours of dinners with his family, the bare veneer of tolerance unable to conceal the despair and sheer dislike underneath; interminable fucking hours spent in traveling, from the metro to the bus to the train to the car, none of them easy on the senses. By the time he was peeling the sweat-soaked shirt off his skin at the bleak end of Saturday, he wanted more than anything to scream. But there could be no screaming. He showered, ate dinner, went to sleep.
note: the repetition, and also the deliberate use of sensory details to anchor time. as much as possible, the flow of time should be pinned to the impression that the time has left on the senses. you can get abstract with it, as in the family section, but if i rewrote this paragraph i'd add some sensory detail there too: sour wine, the grating sound of forks scraping ceramic too sharply, split gravy.
if you spend a lot of time telling your reader exactly how a character spend 7 boring days then your reader will assuredly get bored (sometimes you want that). on the other hand if you just say "he was bored. monday and tuesday were both boring. on wednesday he ate dinner with his family, and on thusday he spent all day traveling. on friday he had another boring day full of meetings." even if you word it a little more nicely, in effect you're not departing much from this idea that you have to List It Out.
but a list is not a bad thing in itself. if you look up list poetry, you'll find a lot of poems that use the list as a medium for metaphor and meaning.
essentially, for me, these types of paragraphs serve as transitions. they are like...doors, or metros. they move the character from one important moment or scene to another. but in the middle, the character isn't dead. it is in this space that the character's and the reader's thoughts have room to grow, shift, settle, teeter. a character walks away from a happy anniversary but then, in the subway or in the living room alone, she breaks down crying. why? because she has space to think, to exist and feel.
and secondly it cements the illusion for the reader that the character is a feeling, thinking, living person. because it is really the small things, that no one would ever text anyone about or talk about: the funny taste of a rotten mealy apple, how your body feels like it's physically turning to paste at hour six of meeting day but theres two hours to go, the overplayed song you hate but sing anyway. how it sticks in your throat sometimes.
be attentive to the texture of human life: it is the most richly abundant resource of any writing. keep your eyes open and glued to the world and to other people. you can write things down but you don't have to remember them: a writing exercise i do all the time on the bus or train is i look at someone and describe them in a story. or just a moment in time, any moment. your life's unique textures, the microhabits of the people around you (adding sugar before the instant coffee, refusing to tie their shoelaces properly, dawdling in the cab hunting for stuff in their purse right when you have to get out) force you to be attentive in life and to the distribution of details in your work.
lastly: try not to overdo it. 3 things, four, five at an absolute stretch. dont belabor your point. people get it! focus on paring that 3 to sharpness. use images, where you can, in lieu of any descriptive word: use descriptive words obliquely.
image it's texture, color, vividity. the absence of it can make your writing feel washed out; go for that sometimes and see how it feels to you.
it's not, i think, about writing only what you know as about writing what you know into whatever else you write.