Most often in November, 27 days.
Highest follower count seen that year: 9,333.
January
Jan 1 02:00–04:00, 15:00–18:00 Jan 2 12:00–17:00, 20:00–23:00 Jan 3 10:00–13:00 Jan 4 22:00–23:00 Jan 6 22:00–24:00 Jan 7 00:00–01:00 Jan 8 22:00–24:00 Jan 9 00:00–01:00, 22:00–23:00 Jan 10 21:00–24:00 Jan 11 00:00–01:00 Jan 12 00:00–01:00, 22:00–24:00 Jan 13 00:00–02:00, 14:00–15:00 Jan 14 12:00–15:00, 21:00–23:00 Jan 16 22:00–24:00 Jan 19 20:00–22:00 Jan 20 09:00–14:00, 22:00–24:00 Jan 21 22:00–23:00 Jan 24 23:00–24:00 Jan 25 00:00–06:00, 23:00–24:00 Jan 26 22:00–24:00 Jan 27 00:00–01:00, 08:00–14:00, 22:00–24:00 Jan 28 00:00–01:00 Jan 29 22:00–24:00 Jan 30 00:00–06:00, 22:00–23:00 Jan 31 00:00–01:00, 23:00–24:00
February
Feb 2 22:00–24:00 Feb 3 10:00–14:00, 22:00–24:00 Feb 5 09:00–14:00, 21:00–24:00 Feb 6 09:00–12:00 Feb 8 23:00–24:00 Feb 9 00:00–04:00, 21:00–23:00 Feb 10 22:00–24:00 Feb 11 22:00–24:00 Feb 12 00:00–01:00 Feb 15 23:00–24:00 Feb 16 00:00–03:00, 22:00–24:00 Feb 17 00:00–05:00 Feb 19 23:00–24:00 Feb 20 00:00–01:00, 22:00–24:00 Feb 22 21:00–24:00 Feb 23 21:00–23:00 Feb 24 09:00–11:00, 22:00–24:00 Feb 25 22:00–24:00 Feb 26 00:00–01:00, 22:00–24:00 Feb 27 00:00–01:00, 22:00–24:00 Feb 28 00:00–01:00
March
Mar 1 23:00–24:00 Mar 2 00:00–01:00, 22:00–24:00 Mar 3 09:00–13:00, 22:00–24:00 Mar 4 21:00–23:00 Mar 5 21:00–24:00 Mar 6 22:00–24:00 Mar 7 00:00–01:00, 23:00–24:00 Mar 8 00:00–01:00, 21:00–24:00 Mar 9 21:00–24:00 Mar 10 08:00–13:00, 21:00–24:00 Mar 11 00:00–01:00 Mar 12 21:00–24:00 Mar 13 22:00–24:00 Mar 14 21:00–23:00 Mar 15 22:00–24:00 Mar 16 00:00–04:00, 22:00–24:00 Mar 17 00:00–01:00, 09:00–13:00, 22:00–23:00 Mar 19 21:00–23:00 Mar 23 01:00–05:00, 21:00–24:00 Mar 24 00:00–02:00, 08:00–13:00 Mar 25 21:00–24:00 Mar 26 21:00–24:00 Mar 28 21:00–24:00 Mar 30 20:00–23:00
April
Apr 1 21:00–24:00 Apr 2 21:00–24:00 Apr 3 22:00–24:00 Apr 4 00:00–02:00, 22:00–24:00 Apr 7 00:00–01:00, 10:00–13:00 Apr 8 20:00–23:00 Apr 9 21:00–24:00 Apr 10 00:00–02:00, 21:00–24:00 Apr 11 00:00–01:00, 21:00–24:00 Apr 12 22:00–24:00 Apr 13 00:00–02:00, 21:00–24:00 Apr 14 00:00–01:00, 20:00–22:00 Apr 15 07:00–11:00, 21:00–24:00 Apr 16 07:00–08:00, 21:00–24:00 Apr 17 07:00–09:00 Apr 21 20:00–24:00 Apr 22 07:00–12:00, 21:00–24:00 Apr 23 09:00–11:00 Apr 24 07:00–09:00 Apr 25 11:00–13:00, 21:00–24:00 Apr 26 21:00–24:00 Apr 27 21:00–24:00 Apr 28 09:00–12:00, 22:00–24:00 Apr 30 21:00–24:00
May
May 1 00:00–01:00, 22:00–23:00 May 4 21:00–23:00 May 5 10:00–13:00, 21:00–23:00 May 6 09:00–12:00, 21:00–23:00 May 7 21:00–23:00 May 8 22:00–23:00 May 9 23:00–24:00 May 10 22:00–24:00 May 12 21:00–23:00 May 14 22:00–23:00 May 18 04:00–05:00, 20:00–24:00 May 20 21:00–24:00 May 21 00:00–02:00, 21:00–24:00 May 22 00:00–03:00, 21:00–24:00 May 23 23:00–24:00 May 24 00:00–04:00, 21:00–24:00 May 25 21:00–24:00 May 26 00:00–01:00, 09:00–13:00, 21:00–24:00 May 27 20:00–23:00 May 28 21:00–24:00 May 29 00:00–04:00, 20:00–23:00 May 31 21:00–24:00
June
Jun 1 21:00–22:00 Jun 3 17:00–24:00 Jun 4 00:00–02:00, 06:00–09:00, 15:00–24:00 Jun 5 14:00–19:00, 23:00–24:00 Jun 6 00:00–05:00, 07:00–12:00 Jun 8 12:00–14:00, 18:00–22:00 Jun 9 08:00–14:00, 16:00–21:00 Jun 10 16:00–20:00 Jun 11 17:00–22:00 Jun 12 15:00–22:00 Jun 13 14:00–15:00, 21:00–22:00 Jun 14 08:00–23:00 Jun 15 10:00–13:00, 17:00–20:00 Jun 16 16:00–21:00 Jun 17 16:00–20:00 Jun 18 19:00–24:00 Jun 22 20:00–23:00 Jun 23 21:00–23:00 Jun 25 21:00–24:00 Jun 26 21:00–24:00 Jun 29 18:00–19:00 Jun 30 08:00–12:00
July
Jul 1 01:00–02:00 Jul 7 21:00–24:00 Jul 10 00:00–01:00, 22:00–24:00 Jul 11 00:00–01:00, 21:00–24:00 Jul 12 22:00–24:00 Jul 20 00:00–01:00, 21:00–24:00 Jul 21 22:00–24:00 Jul 22 00:00–01:00, 22:00–23:00 Jul 23 22:00–24:00 Jul 24 21:00–24:00 Jul 25 22:00–24:00 Jul 26 22:00–24:00 Jul 27 22:00–24:00 Jul 29 21:00–22:00 Jul 30 21:00–24:00 Jul 31 22:00–24:00
August
Aug 3 21:00–24:00 Aug 4 07:00–09:00, 22:00–24:00 Aug 5 21:00–23:00 Aug 6 21:00–24:00 Aug 7 21:00–23:00 Aug 8 21:00–22:00 Aug 9 00:00–02:00, 19:00–24:00 Aug 10 00:00–01:00, 10:00–12:00, 21:00–23:00 Aug 11 09:00–12:00, 21:00–23:00 Aug 13 20:00–23:00 Aug 14 21:00–24:00 Aug 17 20:00–23:00 Aug 18 07:00–12:00 Aug 19 21:00–24:00 Aug 21 21:00–24:00 Aug 22 20:00–23:00 Aug 24 20:00–23:00 Aug 25 20:00–22:00 Aug 26 23:00–24:00 Aug 27 00:00–02:00, 21:00–24:00 Aug 31 20:00–23:00
September
Sep 1 10:00–12:00 Sep 2 20:00–23:00 Sep 3 22:00–23:00 Sep 8 19:00–23:00 Sep 9 20:00–23:00 Sep 10 21:00–22:00 Sep 11 20:00–23:00 Sep 12 21:00–22:00 Sep 13 00:00–01:00 Sep 14 11:00–12:00, 20:00–23:00 Sep 16 22:00–23:00 Sep 17 21:00–23:00 Sep 18 21:00–23:00 Sep 19 22:00–24:00 Sep 20 16:00–24:00 Sep 21 07:00–08:00, 21:00–23:00 Sep 22 21:00–23:00 Sep 23 22:00–24:00 Sep 25 21:00–24:00 Sep 26 00:00–01:00, 21:00–23:00 Sep 30 11:00–13:00
October
Oct 1 09:00–12:00, 20:00–23:00 Oct 2 08:00–11:00 Oct 3 19:00–22:00 Oct 4 19:00–21:00 Oct 6 22:00–24:00 Oct 7 21:00–23:00 Oct 8 21:00–24:00 Oct 10 18:00–24:00 Oct 11 00:00–01:00, 16:00–24:00 Oct 12 00:00–02:00, 11:00–17:00, 20:00–23:00 Oct 13 10:00–15:00, 17:00–21:00 Oct 14 15:00–24:00 Oct 15 10:00–18:00 Oct 16 22:00–24:00 Oct 17 21:00–24:00 Oct 18 21:00–24:00 Oct 19 21:00–24:00 Oct 20 08:00–12:00 Oct 21 21:00–24:00 Oct 22 22:00–23:00 Oct 23 21:00–23:00 Oct 24 08:00–12:00 Oct 26 19:00–21:00 Oct 27 08:00–13:00 Oct 29 11:00–14:00, 23:00–24:00 Oct 30 09:00–12:00, 21:00–24:00
November
Nov 1 16:00–17:00, 23:00–24:00 Nov 2 00:00–01:00, 23:00–24:00 Nov 3 08:00–14:00, 21:00–24:00 Nov 4 00:00–01:00 Nov 5 22:00–24:00 Nov 6 22:00–24:00 Nov 7 00:00–02:00, 23:00–24:00 Nov 8 00:00–01:00, 22:00–24:00 Nov 9 00:00–01:00, 23:00–24:00 Nov 10 09:00–13:00, 21:00–24:00 Nov 11 22:00–24:00 Nov 13 00:00–01:00 Nov 14 00:00–05:00 Nov 15 00:00–06:00, 22:00–24:00 Nov 16 00:00–02:00, 22:00–24:00 Nov 17 00:00–01:00, 22:00–24:00 Nov 18 00:00–01:00, 21:00–24:00 Nov 19 22:00–24:00 Nov 20 00:00–01:00, 21:00–24:00 Nov 21 23:00–24:00 Nov 22 00:00–02:00, 09:00–12:00 Nov 23 12:00–14:00 Nov 24 11:00–13:00 Nov 25 21:00–24:00 Nov 26 09:00–12:00 Nov 27 22:00–24:00 Nov 30 22:00–24:00
December
Dec 1 09:00–11:00, 22:00–24:00 Dec 3 22:00–24:00 Dec 4 00:00–01:00 Dec 5 22:00–24:00 Dec 6 00:00–02:00, 23:00–24:00 Dec 7 00:00–02:00, 22:00–24:00 Dec 8 09:00–14:00, 23:00–24:00 Dec 9 23:00–24:00 Dec 10 22:00–24:00 Dec 11 00:00–01:00, 22:00–24:00 Dec 12 00:00–02:00 Dec 14 21:00–24:00 Dec 15 00:00–02:00, 09:00–13:00 Dec 19 23:00–24:00 Dec 20 00:00–03:00, 23:00–24:00 Dec 21 00:00–03:00 Dec 26 18:00–24:00 Dec 27 00:00–02:00, 10:00–14:00, 20:00–24:00 Dec 28 00:00–01:00, 11:00–12:00, 16:00–21:00 Dec 29 14:00–20:00 Dec 30 08:00–09:00, 16:00–18:00 Dec 31 01:00–02:00