Answer: The OVA most likely takes place in the year that it was released, which is summer of 1992.
This is why their are no smart phones and Tenchi doesn't know how to use a PC
There is only one Smartphone shown in ova 4 and the animation for that was not entirely done by Kajishima. Even then it's not show in the context of the story but in a mental cut away by Minaho, who isn't from earth. There is a cell phone in OVA 3 Japan has had those since the early 90's
The True Tenchi novels present day scenes are in spring they say the date they month they take place in in the introduction for Yosho but obviously they go back in time.
Jurai is mostly set in 1260 AD if 1992 is the start date you use. The parts of the story before he goes to earth and after are obviously earlier and later respectively.
Yosho takes place mostly between 1282 and 1287 ryoko's attack on jurai would naturally be 1292.
Washu starts around 20,000 years before 1992
OVA 3 Starts in early Summer meaning it is now 1993. Time reverses back at the end.
GXP starts in early summer 1993 around Operation Lovey Dovey after the time rewind.
(Seina knows noike. It's before summer vacation. No one is home. In the novels Tokimi warns him of Amane's ship then erases his memory of her warning.) and goes on till about 1995 in the 14th volume it is constantly said that it has been 2 years since seina left.
OVA 4 Starts in November of 1993 as can be seen from the calendar in episode 1 this is around episode 11 or Novel 6 of GXP, before he gets fuku and before he goes back to earth.
GXP Part 2 starts "about a year later" from the end of GXP or 1996.
Paradise war takes place around 2005, which is around 10 years after GXP.
War on geminar takes place around 2009-2010 It's said to be about 15 years after the end of gxp.
Spaceship Aggaruter takes place around 1487, in other words 500 years before tenchi, or 200 years after ryoko attacked.
Dual! takes place over one billion years before Tenchi!
No one knows when Masquerade or GAP⭐P takes place as far as i know.
Photon's date is also unknown but it is probably long after Geminar since it's implied they are on the same planet.
Tenchi Universe's, Tenchi in Tokyo's and Ai Tenchi's dates are unknown as far as I know and really don't matter as long as you realise they are in the 90's.
Not that anyone cares, but The Hasegawaverse ends in 1997 with Daughter of Darkness clearly starting in Christmas of 1996 as can be seen by the scrapbook that Sasami shows Mayuka when she asks about Christmas and Startika.
This is why their are no smart phones and Tenchi doesn't know how to use a PC
There is only one Smartphone shown in ova 4 and the animation for that was not entirely done by Kajishima. Even then it's not show in the context of the story but in a mental cut away by Minaho, who isn't from earth. There is a cell phone in OVA 3 Japan has had those since the early 90's
The True Tenchi novels present day scenes are in spring they say the date they month they take place in in the introduction for Yosho but obviously they go back in time.
Jurai is mostly set in 1260 AD if 1992 is the start date you use. The parts of the story before he goes to earth and after are obviously earlier and later respectively.
Yosho takes place mostly between 1282 and 1287 ryoko's attack on jurai would naturally be 1292.
Washu starts around 20,000 years before 1992
OVA 3 Starts in early Summer meaning it is now 1993. Time reverses back at the end.
GXP starts in early summer 1993 around Operation Lovey Dovey after the time rewind.
(Seina knows noike. It's before summer vacation. No one is home. In the novels Tokimi warns him of Amane's ship then erases his memory of her warning.) and goes on till about 1995 in the 14th volume it is constantly said that it has been 2 years since seina left.
OVA 4 Starts in November of 1993 as can be seen from the calendar in episode 1 this is around episode 11 or Novel 6 of GXP, before he gets fuku and before he goes back to earth.
GXP Part 2 starts "about a year later" from the end of GXP or 1996.
Paradise war takes place around 2005, which is around 10 years after GXP.
War on geminar takes place around 2009-2010 It's said to be about 15 years after the end of gxp.
Spaceship Aggaruter takes place around 1487, in other words 500 years before tenchi, or 200 years after ryoko attacked.
Dual! takes place over one billion years before Tenchi!
No one knows when Masquerade or GAP⭐P takes place as far as i know.
Photon's date is also unknown but it is probably long after Geminar since it's implied they are on the same planet.
Tenchi Universe's, Tenchi in Tokyo's and Ai Tenchi's dates are unknown as far as I know and really don't matter as long as you realise they are in the 90's.
Not that anyone cares, but The Hasegawaverse ends in 1997 with Daughter of Darkness clearly starting in Christmas of 1996 as can be seen by the scrapbook that Sasami shows Mayuka when she asks about Christmas and Startika.