3 ABY

Galaxy of Fear:
-The Doomsday Ship
-Clones
-The Hunger
(Bantam Books - May-July 1998)
 
 
"The Kashyyyk Depths" (Comic strip - July-Sept 1979)
This was one of two unnamed comic strips that weren't reprinted in Classic Star Wars: The Early Adventures. The Essential Guide to Characters places this shortly before The Empire Strikes Back.
 
 
Ison Corridor Ambush
(Rogue Leader: Rogue Squadron II - LucasArts computer game - Nov 2001)
Scott Zdankiewicz's game walkthrough.
 
 
"The Paradise Detour" (Comic strip - Jul-Sep 1983)
"A New Beginning" (Comic strip - Oct-Dec 1983)
"Showdown" (Comic strip - Dec 1983-Feb 1984)
"The Final Trap" (Comic strip - Feb 1984)
(Collected in Classic Star Wars #17-20 - Mar-June 1994)
The Essential Guide to Planets and Moons. "Showdown" is set nearly three years after the first Classic Star Wars story.
 
-
"Prisoner of the Nikto Pirates"
"The Monsters of Dweem"
"Voyage to the Underworld"
"Imperial Jailbreak"
(Star Wars Missions #13-16 - Scholastic - Sept-Dec 1999)
After the heroes arrive on Hoth.-
 
 
A Valentine Story
(Dark Horse Comics - Feb 2003)
 
 
"Double-Cross on Ord Mantell"
(Star Wars Galaxy #5 - Topps - Fall 1995)
 
Rebel Mission to Ord Mantell
(Audio drama - Buena Vista Records - 1983)
 
The Essential Reader's Companion.
 
 
Kirtan Loor becomes Imperial Liaison Officer to the Corellian Security Force.
X-Wing: The Krytos Trap.
 
 
Shinnan, Ennth colonist, is born.
Young Jedi Knights: Shards of Alderaan, via The Completely Unofficial SW Encyclopedia.
 
 
Imperial Navy Major Soontir Fel and actress Wynssa Starflare (aka Syal Antilles) are married on Coruscant.
X-Wing Rogue Squadron: "The Making of Baron Fel". About two years before Episode V.
 
 
Payback: The Tale of Dengar - Pages 73-93
(Tales of the Bounty Hunters - Bantam Spectra Books - Dec 1996)
Shortly before Episode V.
 
 
TIE Fighter: The Stele Chronicles
(LucasArts computer game companion book - 1994)
 
 
The Will of Darth Vader
(Star Wars Adventures Volume 4 - Dark Horse Comics - July 2010)
 
 
A Rebel Alliance convoy on the way to Hoth is attacked at Derra IV by an Imperial squadron, including the 181st TIE Fighter Group. All personnel are killed, including Commander Narra, commander of Red Squadron.
The Empire Strikes Back radio drama. 181st Fighter Group from X-Wing Rogue Squadron: The Making of Baron Fel.
 
 
Booster Terrik is released from the Imperal prison on Kessel after serving a five-year sentence for smuggling.
X-Wing: The Bacta War. After the attack at Derra IV and before Hoth's evacuation.

 
"The Hidden"
(Star Wars Tales #6 - Dark Horse Comics - Dec 2000)
 
 
"Ghosts of Hoth"
(Star Wars Tales #17 - Dark Horse Comics - Sep 2003)
 
Meltdown on Hoth
(Little Golden Book - 2000)
 
Just prior to the opening of Episode V.
 
 
38:6:6
STAR WARS - EPISODE V: THE EMPIRE STRIKES BACK
(20th Century Fox - May 1980)
 
-----The Battle of Hoth
-----Luke Skywalker trains under Jedi Master Yoda.
-----Han Solo is frozen in carbonite.
 
Star Wars Adventure Journal's "GalaxyWide NewsNets" gives the exact date.
 
"The Horror By Night" - During Episode V
(Galaxy Guide 3: The Empire Strikes Back - West End Games - 1989)
 
"Return to Taul" - During Episode V
(Star Wars Adventure Journal #2 - West End Games - May 1994)
 
"In the Trenches" - During Episode V
(Galaxy Guide 3: The Empire Strikes Back - West End Games - 1989)
 
X-Wing Alliance- Opening Scene - During Episode V
(LucasArts computer game - Feb 1999)
 
The Battle of Hoth - During Episode V
(Force Commander - LucasArts computer game - Mar 2000)
 
Battlefield Hoth - During Episode V
(Rogue Squadron III: Rebel Strike - LucasArts video game - Oct 2003)
 
Hoth - Our Finest Hour - During Episode V
(Battlefront II - LucasArts video game - Nov 2005)
 
"Entrenched" - Pages 1-11 - During Episode V
(Star Wars: Visionaries - Dark Horse Comics - Apr 2005)
 
"One Step Ahead" - During Episode V
(Galaxy Guide 3: The Empire Strikes Back - West End Games - 1989)
 
Escape from Hoth - During Episode V
(Rogue Squadron III: Rebel Strike - LucasArts video game - Oct 2003)
 
"Running the Gauntlet" - During Episode V
(Galaxy Guide 3: The Empire Strikes Back - West End Games - 1989)
 
Tales from the Mos Eisley Cantina
-----The Tale of the Wolfman and the Lamproid - Pages 371-374 - During Episode V
(Bantam Spectra Books - Aug 1995)
 
Tales of the Bounty Hunters - During Episode V
-----Therefore I Am: The Tale of IG-88 - Pages 45-58
-----Payback: The Tale of Dengar - Pages 93-117
-----The Prize Pelt: The Tale of Bossk
-----Of Possible Futures: The Tale of Zuckuss and 4-LOM
(Bantam Spectra Books - Dec 1996)
 
"Moment of Doubt" - During Episode V
(Star Wars Tales #4 - Dark Horse Comics - July 2000)
 
Shadows of the Empire - Prologue - During Episode V
(Bantam Spectra Books - May 1996)
 
"Hunting the Hunters" - During Episode V
(Star Wars Galaxy #6 - Topps - 1996)
 
Trials of a Jedi - During Episode V
(Rogue Squadron III: Rebel Strike - LucasArts video game - Oct 2003)
 
"Slippery Slope" - During Episode V
(Star Wars Tales #15 - Dark Horse Comics - Mar 2003)
 
Luke Skywalker and the Treasure of the Dragonsnakes - During Episode V
(Star Wars Adventures Volume 3 - Dark Horse Comics - Feb 2010)
 
"Meeting a Dark Lord" - During Episode V
(Galaxy Guide 3: The Empire Strikes Back - West End Games - 1989)
 
"Thank the Maker" - During Episode V
(Star Wars Tales #6 - Dark Horse Comics - Dec 2000)
 
The Fall of Cloud City - During Episode V
(RPG supplement - Wizards.com - Sep 2001)
 
"Freedom No More" - During Episode V
(RPG adventure - Galaxy Guide 3: The Empire Strikes Back: Second Edition - 1996)
 
Flight from Bespin - During Episode V
(Rogue Squadron III: Rebel Strike - LucasArts video game - Oct 2003)
 
"Dark Voyage to Tatooine" - Bespin scenes only - During Episode V
(Galaxy Guide 3: The Empire Strikes Back - West End Games - 1989)
 
"The Emperor's Trophy"
(Star Wars Galaxy #11 - Topps - 1996)
After The Empire Strikes Back when Vader brought the Emperor Luke's hand, used by C'Boath in The Last Command to clone him.
 
 
Shadows of the Empire - Comic #1 - Page 1 to 17
(Dark Horse Comics - May 1996)
Just after Episode V.
 
 
X-Wing Alliance - Prologue
(LucasArts computer game - Feb 1999)
 
 
"Death Probe" (Star Wars #45 - Marvel Comics - Mar 1981)
"The Dreams of Cody Sunn-Childe" (Star Wars #46 - Marvel Comics - Apr 1981)
"Droid World" (Star Wars #47 - Marvel Comics - May 1981)
"The Third Law" (Star Wars #48 - Marvel Comics - June 1981)
"The Last Jedi" (Star Wars #49 - Marvel Comics - Jul 1981)
 
Velmor: Royalty and Rebellion - During Star Wars #49
(RPG supplement - Wizards.com - Mar 2003)
 
"The Crimson Forever" (Star Wars #50 - Marvel Comics - Aug 1981)
 
Luke Skywalker's Race Against Time (Cruise Along Book - Fun Works - Mar 1998)
 
"Resurrection of Evil" (Star Wars #51 - Marvel Comics - Sep 1981)
"To Take the Tarkin" (Star Wars #52 - Marvel Comics - Oct 1981)
 
"Vader Adrift"
(Star Wars Insider Special Edition - Titan Publishing - 2012)
 
"Death-Masque" (The Empire Strikes Back Monthly #149 - Marvel UK - Sep 1981)
"The Alderaan Factor" (Star Wars #86 - Marvel Comics - Aug 1984)
"The Last Gift From Alderaan" (Star Wars #53 - Marvel Comics - Nov 1981)
"Starfire Rising" (Star Wars #54 - Marvel Comics - Dec 1981)
"Serphidian Eyes" (Star Wars #64 - Marvel Comics - Oct 1982)
"Plif" (Star Wars #55 - Marvel Comics - Jan 1982)
 
Arbra: Sanctuary In the Storm - Part 1: Hole in the Ground
(RPG supplement - Wizards.com - June 2003)
 
"Coffin in the Clouds" (Star Wars #56 - Marvel Comics - Feb 1982)
"Hello, Bespin, Goodbye" (Star Wars #57 - Marvel Comics - Mar 1982)
"Shadeshine" (Star Wars Annual #2 - Marvel Comics - Dec 1982)
"Sundown" (Star Wars #58 - Marvel Comics - Apr 1982)
"Bazarre" (Star Wars #59 - Marvel Comics - May 1982)
"Rust Never Sleeps" (The Empire Strikes Back Monthly #156 - Marvel Comics - May 1982)
"Shira's Story" (Star Wars #60 - Marvel Comics - June 1982)
 
Arbra: Sanctuary In the Storm - Part 4: Rebels in Disguise
(RPG supplement - Wizards.com - June 2003)
 
"Screams in the Void" (Star Wars #61 - Marvel Comics - July 1982)
"Pariah" (Star Wars #62 - Marvel Comics - Aug 1982)
"The Mind Spider" (Star Wars #63 - Marvel Comics - Sep 1982)
"Golrath Never Forgets" (Star Wars #65 - Marvel Comics - Nov 1982)
"The Water Bandits" (Star Wars #66 - Marvel Comics - Dec 1982)
"The Darker" (Star Wars #67 - Marvel Comics - Jan 1983)
 
Arbra: Sanctuary In the Storm - Part 3: The Darker
(RPG supplement - Wizards.com - June 2003)
 
"The Search Begins" (Star Wars #68 - Marvel Comics - Feb 1983)
"Death in the City of the Bone" (Star Wars #69 - Marvel Comics - Mar 1983)
 
The New Essential Chronology places Star Wars #68 and 69 before Shadows of the Empire. Setting these stories here brings up the problem of  Luke having a lightsaber before he replaced his original. Abel Peña suggests that Luke used Baron Tagge's lightsaber from Star Wars #37 until he built the new one. Luke Skywalker's Race Against Time placed by Joe Bongiorno.
 
 
Darth Vader begins to repair Shira Brie's broken body with the help of cybernetics. After her recovery Vader begins to instruct her in the use of the Force, and she soon takes the name Lumiya.
The Marvel Comics series and "The Emperor's Pawns" from Star Wars Gamer #5.
 
 
Ewoks—Shadows of Endor
(Dark Horce Comics - Oct 2013)
 
 
"Slaying Dragons"
(Star Wars Adventure Journal #6 - West End Games - Dec 1997)
 
 
"The Longest Fall"
(Star Wars Adventure Journal #11 - West End Games - Nov 1996)
 
 
"Firepower"
(Star Wars Adventure Journal #8 - West End Games - Nov 1995)
 
 
"Desperate Measures"
(Star Wars Adventure Journal #10 - West End Games - May 1996)
 
 
Tour of Duty 1: The Aftermath of Hoth
Tour of Duty 2: The Sepan Civil War
Tour of Duty 3: Battle on the Frontier
Tour of Duty 4: Conflict at Mylok IV
Tour of Duty 5: Battle for Honor
Tour of Duty 6: Arms Race
(TIE Fighter - LucasArts computer game - 1994)
Time Tales, though there these missions are shuffled amongst the Marvel stories and X-Wing Alliance.
 
 
Battle 1: Clearing the Way
Battle 2: Secret Weapons of the Alliance
(X-Wing Alliance - LucasArts computer game - 1999)
Time Tales.
 
 
Tour of Duty 7: Treachery at Ottega
Tour of Duty 8: Strategic Warfare
Tour of Duty 9: TIE Defender Technology
Tour of Duty 10: New Threats
Tour of Duty 11: The Hunt for Zaarin
(TIE Fighter - LucasArts computer game - 1994)
Time Tales.
 
 
Battle 3: Over the Fence
(X-Wing Alliance - LucasArts computer game - 1999)
 
 
Prisons of the Maw
(Rogue Leader: Rogue Squadron II - LucasArts computer game - 2001)
Scott Zdankiewicz's game walkthrough.
 
 
Zevulon Veers -- son of Imperial General Maximilian Veers -- joins the Rebel Alliance.
The New Essential Guide to Characters.
 
 
Caravan of Courage: An Ewok Adventure
(MGM/ABC-TV - Nov 25, 1984)
 
 
Ewoks: The Battle for Endor
(MGM/ABC-TV - Nov 24, 1985)