Continued from Part 11

Date and time of each milestone:

451,000 --- 17 Aug 2015 16:21
452,000 --- 19 Aug 16:06
453,000 --- 22 Aug 21:35
454,000 --- 24 Aug 04:55
455,000 --- 26 Aug 05:45
456,000 --- 29 Aug 08:11
457,000 --- 30 Aug 22:47
458,000 --- 31 Aug 17:05
459,000 --- 2 Sep 16:07
460,000 --- 6 Sep 13:53
461,000 --- 10 Sep 01:43
462,000 --- 13 Sep 01:12
463,000 --- 14 Sep 14:08
464,000 --- 15 Sep 17:05
465,000 --- 16 Sep 20:38
466,000 --- 17 Sep 22:03
467,000 --- 18 Sep 21:02
468,000 --- 20 Sep 02:50
469,000 --- 20 Sep 19:08
470,000 --- 22 Sep 16:26
471,000 --- 23 Sep 20:59
472,000 --- 24 Sep 13:06
473,000 --- 24 Sep 21:22
474,000 --- 25 Sep 17:21
475,000 --- 26 Sep 15:45
476,000 --- 27 Sep 06:49
477,000 --- 27 Sep 08:28
478,000 --- 27 Sep 20:07
479,000 --- 29 Sep 05:35
480,000 --- 29 Sep 22:30
481,000 --- 1 Oct 04:37
482,000 --- 2 Oct 19:40
483,000 --- 3 Oct 08:01
484,000 --- 4 Oct 01:38
485,000 --- 4 Oct 15:50
486,000 --- 6 Oct 05:24
487,000 --- 7 Oct 13:36
488,000 --- 7 Oct 19:59
489,000 --- 8 Oct 02:12
490,000 --- 9 Oct 06:27
491,000 --- 9 Oct 18:46
492,000 --- 9 Oct 21:32
493,000 --- 10 Oct 13:24
494,000 --- 10 Oct 16:29
495,000 --- 10 Oct 21:43
496,000 --- 11 Oct 08:16
497,000 --- 12 Oct 14:40
498,000 --- 13 Oct 05:22
499,000 --- 13 Oct 16:15
500,000 --- 13 Oct 18:22

Time taken between each milestone:

450,000 - 451,000 --- 1 day 15 hours 53 mins
451,000 - 452,000 --- 1 day 23 hours 45 mins
452,000 - 453,000 --- 3 days 5 hours 29 mins
453,000 - 454,000 --- 1 day 7 hours 20 mins
454,000 - 455,000 --- 2 days 0 hours 50 mins
455,000 - 456,000 --- 3 days 2 hours 26 mins
456,000 - 457,000 --- 1 day 14 hours 36 mins
457,000 - 458,000 --- 18 hours 18 mins
458,000 - 459,000 --- 1 day 23 hours 2 mins
459,000 - 460,000 --- 3 days 21 hours 46 mins
460,000 - 461,000 --- 3 days 11 hours 50 mins
461,000 - 462,000 --- 2 days 23 hours 29 mins
462,000 - 463,000 --- 1 day 12 hours 56 mins
463,000 - 464,000 --- 1 day 2 hours 57 mins
464,000 - 465,000 --- 1 day 3 hours 33 mins
465,000 - 466,000 --- 1 day 1 hour 25 mins
466,000 - 467,000 --- 22 hours 59 mins
467,000 - 468,000 --- 1 day 5 hours 48 mins
468,000 - 469,000 --- 16 hours 18 mins
469,000 - 470,000 --- 1 day 21 hours 18 mins
470,000 - 471,000 --- 1 day 4 hours 33 mins
471,000 - 472,000 --- 16 hours 7 mins
472,000 - 473,000 --- 8 hours 16 mins
473,000 - 474,000 --- 19 hours 59 mins
474,000 - 475,000 --- 22 hours 24 mins
475,000 - 476,000 --- 15 hours 4 mins
476,000 - 477,000 --- 1 hour 39 mins
477,000 - 478,000 --- 11 hours 39 mins
478,000 - 479,000 --- 1 day 9 hours 28 mins
479,000 - 480,000 --- 16 hours 55 mins
480,000 - 481,000 --- 1 day 6 hours 7 mins
481,000 - 482,000 --- 1 day 15 hours 3 mins
482,000 - 483,000 --- 12 hours 21 mins
483,000 - 484,000 --- 17 hours 37 mins
484,000 - 485,000 --- 14 hours 12 mins
485,000 - 486,000 --- 1 day 13 hours 34 mins
486,000 - 487,000 --- 1 day 8 hours 12 mins
487,000 - 488,000 --- 6 hours 23 mins
488,000 - 489,000 --- 6 hours 13 mins
489,000 - 490,000 --- 1 day 4 hours 15 mins
490,000 - 491,000 --- 12 hours 19 mins
491,000 - 492,000 --- 2 hours 46 mins
492,000 - 493,000 --- 15 hours 52 mins
493,000 - 494,000 --- 3 hours 5 mins
494,000 - 495,000 --- 5 hours 14 mins
495,000 - 496,000 --- 10 hours 33 mins
496,000 - 497,000 --- 1 day 6 hours 24 mins
497,000 - 498,000 --- 14 hours 42 mins
498,000 - 499,000 --- 10 hours 53 mins
499,000 - 500,000 --- 2 hours 7 mins

Records as at 500,000:

Shortest Time: 53 mins for 244,000 - 245,000

Longest Time: 28 days 14 hours 49 mins for 25,000 - 26,000

Continued on the Hall Of Fame wiki page