I know it's a ton of info, but since Jessica Jones S3 is also part of this conversation, here are the notes the MCU Wiki compiled:
There is conflicting information about when
Jessica Jones:
Season 3 takes place. The season definitely takes place in 2018:
- In AKA I Have No Spleen, Trish Walker says, "How many times have you trained in the past year? Or ever? [...] I've spent the past year honing my skills, evolving into the best version of myself." This places events a year after June 2017 (see 2017 references), when she got her abilities.
- In AKA Customer Service is Standing By, Jones refers to her latest small action as "the most heroic thing I've done all year". This suggests this is not the same year as the events of Season 2, which was 2017 (see 2017 references).
- In AKA Camera Friendly, it is said that Alisa Jones' kills, firmly in May 2017 (see 2017 references), were "last year".
However, there are three options for when in 2018: January-February 2018, April-May 2018, or November-December 2018. The evidence is:
- The season does not reference the world-changing effects of Thanos' Snap, which occurred in May 2018 (see other references). Furthermore, Jeph Loeb stated in July 2018, "The short answer is that the stories that you're seeing, unless otherwise noted, all happen before [...] what is affectionately referred to as "The Thanos Snap". And we'll continue to be in that place until we find out what happens in Avengers 4," referring to Marvel Cinematic Universe television. He only clearly refers to television released before April 26, 2019, though without any mention in the shows released shortly after Avengers: Endgame either, including this season, it could be taken that he meant "at least until we find out what happens in Avengers 4", and with it not being "otherwise noted" this season, the statement applies. Regardless, ideally, the season should be before the Snap, finishing by May 2018.
- In AKA Camera Friendly, in a live broadcast, Trish Walker says, "Now, I have a surprise for you today. A very special guest host in honor of Mother's Day." Grace says, "Mother's Day is 6 months away." Walker replies, "Giving us plenty of time to shop for that perfect Mother's Day gift, Grace." With Mother's Day being May 13, 2018 (shown in One Bad Day to be the same in the MCU as the real world), this would make the season November.
- In AKA The Double Half-Wappinger, it is shown that Donny Sallinger's death was reported on "April 7, 2001". Later, it is said that this was "18 years ago", which would otherwise suggest it is 2019. Given it is 2018, this suggests it should be late 2018.
- All twelve previous Marvel Netflix seasons have followed chronological order in their releases, meaning this is almost certainly still the case for the thirteenth and final season. This would place the middle of the season later than the middle of The Punisher: Season 2, firmly May 10, 2018 (see other references).
- In AKA The Perfect Burger, a recent email says, "It's spring! Make your bedroom feel like a botanical garden."
- In AKA You're Welcome, in a flashback to not long before the season's events, Trish Walker and Grace state that it is currently spring. This would suggest the season's main events are spring/summer.
- In AKA Everything, Trish Walker says, "We're debuting our spring-summer collection." This would generally be around January.
- American football is shown to be on TV in AKA The Perfect Burger and AKA A Lotta Worms, suggesting it is September-February.
- In AKA Camera Friendly, it is shown to be dark in New York in a scene set at least 30 minutes before "7PM". This would suggest it is between October and March.
- In AKA The Perfect Burger, Trish Walker is selling an "easy breezy summer tank" top on TV, suggesting it is around spring/summer.
- In AKA The Perfect Burger, a small pumpkin sticker is shown in a bar. In AKA A Lotta Worms, small pumpkin and skeleton decorations are present in the bar. This would suggest it is around Halloween.
- In AKA The Perfect Burger, it is shown to be 18°F at 8:46PM, suggesting it is around January.
- In AKA You're Welcome, in a flashback to not long before the season's events, it is said to be below freezing this week and shown to be 21°F at 9:24AM, suggesting it is January, so the season not long after January.
- In AKA I Did Something Today, the week ahead's weather is shown to average 45.7°F low, 59°F high, suggesting around April or October.
- In AKA Everything, it is shown to be 37°F at 4:23PM, suggesting it is around January.
- In AKA I Have No Spleen, Trish Walker says, "How many times have you trained in the past year? Or ever? [...] I've spent the past year honing my skills, evolving into the best version of myself." This places the events a year after June 2017 (see 2017 references), suggesting around mid-2018.
- In AKA Customer Service is Standing By, Erik Gelden talks to Jessica Jones in the morning, during daylight hours. He has 12 hours to deliver his debt, and delivers it 3 hours late, meaning there were over 15 hours of daylight. This would suggest the events are between May and August.
- In AKA Everything, Jones' iCloud calendar says "Wednesday 5", suggesting September 2018 or December 2018.
- In AKA The Perfect Burger, Boogeyman by Dead Posey plays in the bar. This was released in August 2018, suggesting the events are set after then.
- In AKA You're Welcome, in a flashback to the day the season's events begin, People magazine's January 22, 2018 issue (with an advert for The Alienist, which began on January 21, 2018, shown on the back) is shown. This suggests the season's events are after late January.
From this, there appears to be three possible options for the season, which spans 31 days: January-February 2018, April-May 2018, or November-December 2018.
The January-February 2018 placement:
- Fits with being pre-Snap, the spring-summer clothes launch, the football games shown, it being dark by 18:30, and most of the weather recordings shown.
- Passably satisfies being "6 months" until Mother's Day (if rounding is involved from 4 months), being a year since June 2017, and one of the weather recordings shown.
- Goes against April 2001 being "18 years ago", Netflix chronological order, the "It's spring!" email, the recent flashback being said to be spring, the "easy breezy summer tank" top, the pumpkin and skeleton decorations, the "Wednesday 5" iCloud calendar date, the 15 hours of daylight, the January 22, 2018 magazine, and Boogeyman by Dead Posey.
The April-May 2018 placement:
- Fits with being pre-Snap, Netflix chronological order, the "It's spring!" email, the recent flashback being said to be spring, the "easy breezy summer tank" top, the 15 hours of daylight, being a year since June 2017, and the January 22, 2018 magazine.
- Passably satisfies April 2001 being "18 years ago" (17 years, but at least it is slightly over 17.0 years) and the spring-summer clothes launch.
- Goes against being "6 months" until Mother's Day, the football games shown, the pumpkin and skeleton decorations, it being dark by 18:30, the "Wednesday 5" iCloud calendar date, the 15 hours of daylight, the weather recordings shown, and Boogeyman by Dead Posey.
The November-December 2018 placement:
- Fits with being "6 months" until Mother's Day, April 2001 being "18 years ago" (as close as possible), Netflix chronological order, the football games shown, the pumpkin and skeleton decorations, it being dark by 18:30, the "Wednesday 5" iCloud calendar date, Boogeyman by Dead Posey, the January 22, 2018 magazine, and one of the weather recordings shown.
- Passably satisfies the recent flashback being said to be spring (if you assume Walker only started tracking Brandt months after he was set free), being a year since June 2017, and the spring-summer clothes launch.
- Goes against being pre-Snap, the "It's spring!" email, the "easy breezy summer tank" top, the 15 hours of daylight, and most of the weather recordings shown.
The evidence the season itself contains would place the season in November-December 2018. However, incorporating the Snap, the late 2018 placement becomes highly problematic, and the evidence sets very comparable. Ultimately, given there is in fact some evidence for Spring 2018 (slightly more than early 2018) rather than late 2018, and the near impossibility for the season to be 6 months post-Snap without a single recognition of the event, Spring 2018 is taken as the strongest placement within the context of the
MCU.
The season should be chronologically set after
The Punisher: Season 2. Therefore, the middle of the season (the middle of
AKA The Double Half-Wappinger) should be set after the middle of
The Punisher: Season 2 (the middle of
One Bad Day), Thursday, May 10, 2018. The middle of
AKA The Double Half-Wappinger is set on a Thursday, meaning at the earliest, it is later in the same day as the middle of
One Bad Day. The season spans 18 days after the middle of
AKA The Double Half-Wappinger, meaning the earliest it can finish is May 28, 2018. With the Snap set after the season, and meant to be set as early as possible in May 2018 (see other references), this earliest possible Spring 2018 placement for
Jessica Jones: Season 3 should be taken. With the middle of
AKA The Double Half-Wappinger set on May 10, 2018, the season overall spans April 26-May 28, 2018.