Most often in October, 28 days.
Highest follower count seen that year: 558.
April
Apr 7 12:00–14:00 Apr 8 08:00–10:00, 12:00–13:00 Apr 9 22:00–23:00 Apr 11 06:00–07:00, 22:00–23:00 Apr 13 12:00–13:00 Apr 16 13:00–14:00 Apr 17 11:00–14:00, 20:00–21:00 Apr 18 07:00–08:00, 12:00–13:00 Apr 20 09:00–15:00 Apr 21 15:00–19:00 Apr 22 08:00–09:00, 14:00–15:00 Apr 23 07:00–09:00, 11:00–17:00 Apr 25 11:00–12:00 Apr 26 08:00–10:00 Apr 29 06:00–07:00, 12:00–13:00
May
May 1 11:00–13:00 May 14 17:00–19:00 May 15 05:00–06:00, 08:00–11:00, 13:00–15:00 May 16 19:00–20:00 May 17 08:00–11:00, 19:00–23:00 May 18 09:00–11:00 May 19 07:00–09:00, 12:00–13:00 May 20 12:00–14:00, 21:00–22:00 May 21 23:00–24:00 May 23 12:00–13:00 May 25 19:00–20:00 May 26 12:00–13:00 May 28 21:00–24:00 May 29 21:00–23:00 May 30 06:00–07:00 May 31 12:00–13:00
June
Jun 1 09:00–10:00, 17:00–18:00 Jun 2 12:00–13:00, 19:00–20:00 Jun 3 10:00–12:00, 20:00–21:00 Jun 4 10:00–11:00 Jun 6 20:00–21:00 Jun 7 11:00–14:00, 22:00–24:00 Jun 8 22:00–24:00 Jun 9 13:00–14:00 Jun 10 19:00–21:00 Jun 11 22:00–23:00 Jun 12 16:00–17:00 Jun 13 13:00–14:00 Jun 15 12:00–13:00 Jun 16 21:00–22:00 Jun 17 22:00–23:00 Jun 18 13:00–19:00 Jun 21 11:00–14:00, 20:00–21:00 Jun 22 15:00–17:00 Jun 23 12:00–13:00, 19:00–20:00 Jun 25 13:00–15:00, 17:00–18:00, 22:00–23:00 Jun 26 07:00–08:00, 22:00–23:00 Jun 27 20:00–21:00 Jun 28 21:00–23:00 Jun 29 06:00–07:00 Jun 30 20:00–21:00
July
Jul 1 06:00–07:00, 10:00–13:00, 16:00–17:00 Jul 2 10:00–13:00, 18:00–19:00 Jul 3 13:00–14:00, 21:00–22:00 Jul 5 22:00–24:00 Jul 6 19:00–23:00 Jul 7 23:00–24:00 Jul 8 13:00–14:00 Jul 9 13:00–15:00 Jul 13 10:00–14:00 Jul 14 11:00–12:00, 21:00–23:00 Jul 15 10:00–11:00 Jul 16 11:00–13:00, 21:00–23:00 Jul 17 22:00–23:00 Jul 18 14:00–19:00 Jul 20 12:00–13:00, 19:00–20:00 Jul 21 21:00–23:00 Jul 22 12:00–13:00, 18:00–21:00 Jul 23 12:00–15:00, 18:00–20:00 Jul 25 20:00–21:00 Jul 26 12:00–14:00, 19:00–21:00 Jul 27 09:00–10:00, 19:00–20:00 Jul 28 21:00–22:00 Jul 30 13:00–19:00
August
Aug 2 21:00–22:00 Aug 6 22:00–23:00 Aug 7 12:00–13:00, 21:00–22:00 Aug 9 11:00–12:00, 18:00–19:00 Aug 10 11:00–15:00, 17:00–19:00 Aug 13 13:00–14:00, 21:00–22:00 Aug 14 13:00–14:00, 20:00–21:00 Aug 15 04:00–05:00, 12:00–13:00, 20:00–21:00 Aug 16 10:00–12:00 Aug 17 11:00–12:00, 18:00–20:00 Aug 18 13:00–15:00 Aug 20 13:00–14:00, 17:00–18:00 Aug 22 23:00–24:00 Aug 23 05:00–06:00, 11:00–12:00, 19:00–20:00 Aug 24 11:00–12:00, 21:00–23:00 Aug 25 21:00–22:00 Aug 26 06:00–07:00, 11:00–15:00 Aug 27 11:00–12:00 Aug 29 22:00–23:00 Aug 30 23:00–24:00 Aug 31 21:00–23:00
September
Sep 1 10:00–19:00, 21:00–23:00 Sep 2 10:00–13:00, 22:00–24:00 Sep 3 06:00–07:00, 11:00–13:00 Sep 4 13:00–14:00 Sep 6 07:00–08:00, 10:00–12:00, 18:00–19:00 Sep 7 01:00–02:00, 08:00–16:00 Sep 8 07:00–08:00, 13:00–14:00 Sep 9 06:00–07:00, 21:00–22:00 Sep 10 14:00–18:00 Sep 11 10:00–11:00, 22:00–23:00 Sep 12 16:00–18:00 Sep 13 19:00–20:00 Sep 14 22:00–23:00 Sep 15 12:00–13:00, 23:00–24:00 Sep 16 13:00–14:00 Sep 17 07:00–08:00, 12:00–15:00 Sep 18 16:00–18:00 Sep 20 05:00–08:00, 19:00–20:00, 22:00–23:00 Sep 21 06:00–07:00 Sep 22 20:00–21:00 Sep 23 07:00–09:00, 19:00–20:00 Sep 24 07:00–09:00, 14:00–17:00, 21:00–22:00 Sep 26 13:00–14:00, 21:00–22:00 Sep 27 21:00–22:00 Sep 28 11:00–14:00, 21:00–22:00 Sep 29 08:00–09:00, 12:00–14:00 Sep 30 04:00–05:00
October
Oct 1 11:00–14:00 Oct 2 12:00–14:00 Oct 3 09:00–10:00 Oct 5 17:00–18:00 Oct 6 10:00–14:00, 20:00–21:00 Oct 7 07:00–08:00 Oct 8 06:00–16:00 Oct 9 07:00–12:00 Oct 10 08:00–10:00, 14:00–15:00, 19:00–21:00 Oct 11 09:00–10:00, 17:00–18:00, 23:00–24:00 Oct 12 00:00–01:00, 09:00–12:00 Oct 13 19:00–23:00 Oct 14 07:00–14:00 Oct 15 15:00–17:00, 21:00–23:00 Oct 16 07:00–09:00, 12:00–15:00, 21:00–22:00 Oct 17 11:00–17:00 Oct 18 09:00–10:00, 12:00–13:00, 18:00–19:00 Oct 19 07:00–09:00 Oct 20 11:00–12:00, 21:00–22:00 Oct 21 11:00–15:00 Oct 22 21:00–23:00 Oct 23 11:00–14:00, 17:00–18:00 Oct 24 08:00–09:00, 11:00–15:00, 19:00–20:00 Oct 26 21:00–22:00 Oct 28 15:00–16:00, 21:00–23:00 Oct 29 15:00–18:00, 22:00–23:00 Oct 30 19:00–20:00, 23:00–24:00 Oct 31 22:00–24:00
November
Nov 3 07:00–08:00, 22:00–23:00 Nov 5 15:00–16:00, 23:00–24:00 Nov 6 00:00–01:00, 08:00–10:00 Nov 7 14:00–15:00 Nov 8 13:00–14:00, 21:00–23:00 Nov 9 21:00–23:00 Nov 10 10:00–14:00, 20:00–23:00 Nov 11 01:00–02:00, 12:00–13:00, 19:00–22:00 Nov 12 04:00–05:00, 17:00–18:00 Nov 13 22:00–23:00 Nov 14 22:00–24:00 Nov 15 23:00–24:00 Nov 16 11:00–19:00 Nov 17 12:00–13:00 Nov 18 06:00–08:00, 21:00–22:00 Nov 19 13:00–15:00, 22:00–23:00 Nov 21 13:00–15:00, 20:00–21:00 Nov 22 20:00–22:00 Nov 23 08:00–09:00, 17:00–18:00 Nov 26 14:00–15:00, 18:00–23:00 Nov 29 12:00–13:00
December
Dec 1 23:00–24:00 Dec 2 13:00–14:00, 19:00–21:00 Dec 4 13:00–15:00, 22:00–24:00 Dec 6 18:00–19:00 Dec 7 13:00–21:00 Dec 8 12:00–14:00 Dec 9 14:00–15:00 Dec 11 12:00–13:00, 15:00–18:00 Dec 12 13:00–14:00 Dec 13 23:00–24:00 Dec 14 18:00–20:00 Dec 17 14:00–15:00 Dec 20 21:00–23:00 Dec 22 15:00–17:00 Dec 29 12:00–13:00 Dec 30 23:00–24:00