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For other uses, see Timeline (disambiguation).
For the Story Arcs, see Story Arcs.

This is a list of events that took place in Undertale Rho in chronological order. All information here is directly uploaded by Alphasaith, the creator of Undertale Rho.

NOTES:

  • This is a work in progress.
  • This timeline includes events pertaining to time-travel. Efforts to clear up the confusion associated with time and time-travel have been added in the form of "worlds". See far left.
  • All dates are based upon the Gregorian Calendar.

Dark History Arc

630

World Date Time Event
W1 January 11, 630 1:01 PM I͎̟̻ͯ͌̃ͣ̌ͪ̚̚n̴͇̟̐͌͆̊ͥf̨̛̞͗́̿ṍ̸̥̤̘̖̳̅̽̒̐r̨͕̩̥̩̟̼̗ͩm̡͖͍̙͌̋̊ͫ̐͟͢ͅa̞̖̠ͣ͒̎͊ͫ̔͒ͅt̺̙̘̟̱̫̥̥͌ͯ̅̔̒͊̍i͕͗͠oͨ̔̆̈́̚҉͚͚̭̮͓n̩̥͖̄̒ͅ ̟͈͌̅ͦ̌ͬ͐c͈͔̼̱̮͊̓́̚ō̸̪̮͈̥̎̓ͦͭ̉ͪ̓r̡̰͎͙͔͑̒͆̇̐rͯ͏͖̪̤ͅü̡̖̬̩̱͇͐͝p̋̀ͨ̊ͯͯ҉̙͎̪͕̰͓̯͕t̨̟̞͔͑ͯ̋͐͑̐̐e̛͍̹̺̱͛̈́ͧ͠d͓̟̲͙͎͖͍͖͍͗͂̅̓́ͫͭ̇̕͡.͙̠̤̩͐̐ͤͨ̋ͧ̐ͪ̀ ̿͊͐̾̍ͮ̍͂̚͏͖̰̻̲̫̬ͅR̯̤͛ͬͬe̦̘̱̮ͦ͌̽ͦ͋ͪ͜c̛̙͚̘̗͐̽͟o̷̸͔̳͚̎͗̆͂̇ͮ͢v̯͉͈̔̒̽̑̍͑̇̌e̻̤̊̑̾͑̾ͣ͐̚r̡̲̤̮̗͉̒̑ͫ̀ͩ̂̐̄́͠y͕̞̟̭͔̮̬͉ͭͩ̏̿̌̂ͮ͢ ̵̨͓̣͐ͥ̓̀̉͌̍̑͞a̾ͯͣ͢҉̬͎͍ṯ̦̝͈̦͍̫ͩ͌̂͘t̵͇͖̊͂̎ͣ͡e̱͔͉̰̼̹̜ͥ̆̃̍ͥ͘m̲̜̗̉͐́p̩̲͚̜͗ͣͯ͐ͬ͆ͪͦ͞ͅt̴͇̀͒͊̒ͮ͘ ̨̛̠̖̖̩͍̩̘̰ͤ̈͡ͅi̹̲̣̱ͤͮ͗̓̽́́͘͠ṉ̷̢̨̟̭̝ͫ͌ͅȋ̛̖̖͚̱͍̤̄ͤ͋̐͜t͈ͪ̈̄̄͌ͮȉ̮̬͕͎̱̖̗͎̻͒́̇̚ȁͩ͌̽͏̧̬̰t͕̬͚̂e̸͒ͪ̈͒́ͭͣ̈́͞҉̪͕̟̲̦͖d͈̟͚̫ͥͯ͋̀.͒ͩ̃͏̜͡

951

World Date Time Event
W1 February 4, 951 9:51 PM Wing Ding Aster II is born.

1024

World Date Time Event
W1 March 5, 1024 10:55 Wing Ding Aster II meets Argrid Dreemurr.
W1 March 5, 1024 11:00 Wing Ding Aster II changes his name to Wing Ding Gaster to hide that he is an Aster as Argrid Dreemurr and someone from the Aster Dynasty had a hostile encounter.

Between Dark History Arc and War Arc

1030

World Date Time Event
W1 April 17, 1030 10:10 AM Asgore Dreemurr is born.

1051

World Date Time Event
W1 July 4, 1051 10:21 AM Grillby Vulcanus ignites.

1106

World Date Time Event
W1 April 17, 1106 10:10 AM Argrid Dreemurr and Astrid Dreemurr die.

1191

World Date Time Event
W1 March 10, 1191 3:34 PM Gerson Kachhua hatches from his egg.

1251

World Date Time Event
W1 May 12, 1251 12:00 PM Gerson Kachhua becomes the Head of the Royal Guard.

War Arc

1256

World Date Time Event
W1 October 31, 1256 8:00 AM The Human-Monster War begins.

1258

World Date Time Event
W1 April 17, 1258 2:01 PM The Monsters are sealed within Mount Ebott as a result for their loss in the Human-Monster War.

Between War Arc and Family Arc

1390

World Date Time Event
W1 September 9, 1390 10:00 AM Asgore Dreemurr and Toriel Dreemurr get married.

1395

World Date Time Event
W1 June 21, 1395 12:02 PM Asriel Dreemurr is born.
W1 August 13, 1395 1:17 AM Chrysanthe Charaktíras is born.

1407

World Date Time Event
W1 August 13, 1407* 11:33 AM Chrysanthe Charaktíras falls into The Underground.

Family Arc

1407

World Date Time Event
W1 August 13, 1407 12:04 PM Chrysanthe Charaktíras is found by Asriel Dreemurr.

Between Fallen Arc and Laboratory Arc

1940

World Date Time Event
W1 December 7, 1940 7:48 AM Alphys Aleulum hatches from her egg.

1942

World Date Time Event
W1 September 1, 1942 4:45 AM Undyne Alcaeus hatches from her egg

Between Laboratory Arc and Madman Arc

1996

World Date Time Event
W1 December 28, 1996 3:23 PM Birgir Ákison is born.

2003

World Date Time Event
W1 September 21, 2003 3:11 PM Frisk is born.

Flowey's Arc

2015

World Date Time Event
W6 September 1, 2015 10:15 AM Flowey wakes up in Asgore's Throne Room.
W6 September 13, 2015 2:12 AM Flowey, tired of living without feeling, kills himself. Moments before dying, he gains the will to live. The Pocketwatch Timepiece took notice, and "reset" the timeline to 10:15 AM on September 1, 2015.
W7 September 1, 2015 10:15 AM Flowey wakes up in Asgore's Throne Room, this time with The Pocketwatch Timepiece.
W192 September 15, 2015 3:41 PM The Pocketwatch Timepiece leaves Flowey due to his corruption.

Between Flowey's Arc and Underearth Arc

2015

World Date Time Event
W192 September 15, 2015 5:32 PM I̙̠̖̲͈̱̪̓͊͒ͪ́͛̚n̴̜͈̓̊͒ͫ́f̰̗̜̹̜̥͉̏̊͘o̳̠ͦ̿̕͝ṟ̸̛̖̗͕̫̦̳̜̬̎̑̋ͦ̍͝m͖̌ͫ͆̐̆̀͝ä͇̻̫͙̭͛̓͗̀̅ͨ̎ͅt͋̓҉̲̭̲̱͎̣̬̘ỉ̵̵̟̯ͯͫ̚ỏ̬̝̖̰̱̫̜ͭ̀͜͠n̡̥̲̟͆́͗͛̾́̈̿͘͡ ̞̤͉̖̟̲̩̥̳̄ͯ̏ͯ̈ͯ̾̕c̶͙̼͙̝͎͆͐ͨͪͯo̡̨̢̫̩̖͎͙̓̍ͦ̈̌ṟ̙ͮ͊͂̇̈́͒̐̉͡r͎̞͓̝̉̍̇͗̉ͦṵ̷̷͉̫̠͎̣ͣ̍ṕͫ̃ͧ͐ͥ͛͏̣̤̜t̯̭͎̂ͮ͂͑͡é͕ͬ͌̌ͦ̈͝ͅd̟͚̲̞̣̯ͤ̉.̯̮̲͈̯̩̮̯ͧͯͬ́͡ ̗̗͚͖̤̟̣͕̒̋̽͘͟͞R̳̝̥̤̿̌͑͜e͖̻͚͒ͨ̔͑̌̑͠c͆̍̀ͬͪ̒҉͉̬̪̞͙͘ỏ̢̡̭̗̳̭̪̦̖͇̎ͫ̔͗̐̋̀v̧̪̙̹̯̬̜̞̜̖ͨ͂̐̈e͍̹̪ͨ̈ͪr͛͐ͫ͂ͤͦͪͤ͒҉̡̠͙͈̹̮̼̹͓ẙ̶̧̛̦̱͇̣̱̦̟̏ͅͅ ̥̟̥͓͖̔ͯ̈̔̿̀͡ä̲̳̻̼̣̠̳̏̈͟͡t̴̥̙̻̀͗́͒̇̾̋̐͝t̩̬͈͉̫̝ͪͯ͋͜͞͡ĕ͌̀̅ͧͪ̏҉̝͈̠m̴̶̪͇̏̓͛̾͋͊ͦͅp̸̤̅̽̋̓͒ͮt̹̺̲̘̗̩ͫ̂̏͘͟ͅ ̡̭͖̯̻̖͋̏͋̀i̜͈̺̞͇̝͙ͨ̉͆ͯň̡͚̦͇̳̥̃̈́ͦ́i̴̧̹̝̘̟̊ͥ̊t̼̺͎̿̇̉̂̑ͤ͞i̛͙̟̬͕͉̎ͮͅa̵̳̗̥ͫ̐͘ť͓͇͈̫̰̳͚̬̯͂ͮ͟e̡̨̘̗̩̦̙̖̙̘͛ͦ̏ḋ̢͉̖̻̎̌̈.̶̴̹̯̩̊̈ͬ͛̈́́͞
W192 September 15, 2015 5:58 PM I͎̟̻ͯ͌̃ͣ̌ͪ̚̚n̴͇̟̐͌͆̊ͥf̨̛̞͗́̿ṍ̸̥̤̘̖̳̅̽̒̐r̨͕̩̥̩̟̼̗ͩm̡͖͍̙͌̋̊ͫ̐͟͢ͅa̞̖̠ͣ͒̎͊ͫ̔͒ͅt̺̙̘̟̱̫̥̥͌ͯ̅̔̒͊̍i͕͗͠oͨ̔̆̈́̚҉͚͚̭̮͓n̩̥͖̄̒ͅ ̟͈͌̅ͦ̌ͬ͐c͈͔̼̱̮͊̓́̚ō̸̪̮͈̥̎̓ͦͭ̉ͪ̓r̡̰͎͙͔͑̒͆̇̐rͯ͏͖̪̤ͅü̡̖̬̩̱͇͐͝p̋̀ͨ̊ͯͯ҉̙͎̪͕̰͓̯͕t̨̟̞͔͑ͯ̋͐͑̐̐e̛͍̹̺̱͛̈́ͧ͠d͓̟̲͙͎͖͍͖͍͗͂̅̓́ͫͭ̇̕͡.͙̠̤̩͐̐ͤͨ̋ͧ̐ͪ̀ ̿͊͐̾̍ͮ̍͂̚͏͖̰̻̲̫̬ͅR̯̤͛ͬͬe̦̘̱̮ͦ͌̽ͦ͋ͪ͜c̛̙͚̘̗͐̽͟o̷̸͔̳͚̎͗̆͂̇ͮ͢v̯͉͈̔̒̽̑̍͑̇̌e̻̤̊̑̾͑̾ͣ͐̚r̡̲̤̮̗͉̒̑ͫ̀ͩ̂̐̄́͠y͕̞̟̭͔̮̬͉ͭͩ̏̿̌̂ͮ͢ ̵̨͓̣͐ͥ̓̀̉͌̍̑͞a̾ͯͣ͢҉̬͎͍ṯ̦̝͈̦͍̫ͩ͌̂͘t̵͇͖̊͂̎ͣ͡e̱͔͉̰̼̹̜ͥ̆̃̍ͥ͘m̲̜̗̉͐́p̩̲͚̜͗ͣͯ͐ͬ͆ͪͦ͞ͅt̴͇̀͒͊̒ͮ͘ ̨̛̠̖̖̩͍̩̘̰ͤ̈͡ͅi̹̲̣̱ͤͮ͗̓̽́́͘͠ṉ̷̢̨̟̭̝ͫ͌ͅȋ̛̖̖͚̱͍̤̄ͤ͋̐͜t͈ͪ̈̄̄͌ͮȉ̮̬͕͎̱̖̗͎̻͒́̇̚ȁͩ͌̽͏̧̬̰t͕̬͚̂e̸͒ͪ̈͒́ͭͣ̈́͞҉̪͕̟̲̦͖d͈̟͚̫ͥͯ͋̀.͒ͩ̃͏̜͡

Underearth Arc

2015

W192

World Date Time Event
W192 September 15, 2015 6:02 PM Frisk arrives in the Underground.
W192 September 15, 2015 6:13 PM Frisk wakes up and discovers The Pocketwatch Timepiece next to him.
W192 September 15, 2015 6:15 PM Frisk meets the flower-like Monster named Flowey. Flowey educates Frisk in how The Underground works.
W192 September 15, 2015 6:20 PM Frisk is saved by Toriel Dreemurr and enters the Citadel.