Most often in October, 26 days.
Highest follower count seen that year: 6,358.
February
Feb 6 04:00–05:00, 20:00–21:00 Feb 12 05:00–06:00 Feb 13 19:00–22:00 Feb 14 07:00–08:00 Feb 16 04:00–09:00, 18:00–21:00, 23:00–24:00 Feb 17 18:00–22:00 Feb 18 14:00–22:00 Feb 19 04:00–07:00, 12:00–18:00 Feb 20 18:00–20:00 Feb 21 06:00–08:00, 16:00–18:00 Feb 22 05:00–06:00, 16:00–20:00, 23:00–24:00 Feb 23 01:00–03:00, 15:00–17:00 Feb 25 19:00–21:00 Feb 26 07:00–09:00, 19:00–20:00 Feb 27 04:00–08:00 Feb 28 05:00–07:00
March
Mar 1 16:00–21:00 Mar 2 01:00–05:00, 16:00–19:00 Mar 4 08:00–10:00, 17:00–21:00 Mar 5 06:00–07:00 Mar 6 05:00–07:00, 19:00–21:00 Mar 7 07:00–09:00, 20:00–21:00 Mar 11 20:00–22:00 Mar 13 07:00–09:00, 21:00–23:00 Mar 14 17:00–19:00 Mar 16 01:00–07:00, 16:00–20:00 Mar 17 19:00–22:00 Mar 18 06:00–08:00, 19:00–23:00 Mar 19 05:00–08:00, 19:00–21:00 Mar 22 08:00–09:00 Mar 23 04:00–06:00, 14:00–17:00 Mar 24 00:00–05:00, 14:00–15:00, 17:00–20:00 Mar 27 18:00–21:00 Mar 28 12:00–13:00 Mar 30 04:00–08:00, 17:00–19:00 Mar 31 22:00–23:00
April
Apr 2 18:00–21:00 Apr 3 14:00–18:00 Apr 4 15:00–21:00 Apr 5 06:00–10:00 Apr 6 15:00–18:00 Apr 7 15:00–19:00, 22:00–23:00 Apr 8 07:00–09:00 Apr 9 08:00–09:00, 13:00–15:00, 21:00–23:00 Apr 10 04:00–05:00 Apr 11 07:00–08:00 Apr 12 05:00–08:00 Apr 13 03:00–07:00, 17:00–20:00, 23:00–24:00 Apr 14 05:00–06:00 Apr 15 05:00–09:00 Apr 16 06:00–08:00 Apr 17 04:00–07:00 Apr 18 03:00–04:00 Apr 19 05:00–06:00 Apr 21 04:00–05:00, 08:00–09:00, 11:00–13:00, 17:00–19:00 Apr 23 13:00–15:00 Apr 24 05:00–09:00 Apr 26 16:00–18:00 Apr 27 09:00–12:00, 16:00–17:00 Apr 29 16:00–18:00 Apr 30 06:00–07:00, 15:00–17:00
May
May 2 09:00–10:00 May 3 06:00–08:00 May 4 04:00–06:00 May 5 18:00–21:00 May 6 05:00–10:00, 18:00–20:00 May 7 15:00–17:00 May 8 06:00–07:00, 17:00–19:00 May 9 04:00–07:00, 19:00–21:00 May 10 00:00–01:00, 08:00–10:00 May 11 02:00–05:00, 07:00–11:00, 16:00–19:00 May 12 04:00–06:00, 16:00–18:00 May 19 04:00–10:00 May 20 05:00–07:00, 21:00–23:00 May 21 18:00–21:00 May 23 20:00–22:00 May 24 05:00–09:00
June
Jun 6 20:00–22:00 Jun 7 10:00–11:00 Jun 8 04:00–05:00, 13:00–16:00 Jun 9 07:00–08:00, 18:00–22:00 Jun 13 22:00–23:00 Jun 14 04:00–06:00 Jun 20 07:00–10:00, 22:00–23:00 Jun 21 10:00–12:00 Jun 22 11:00–17:00 Jun 23 16:00–21:00 Jun 24 09:00–11:00 Jun 25 20:00–22:00 Jun 26 07:00–09:00, 20:00–22:00 Jun 27 06:00–11:00 Jun 29 03:00–07:00, 16:00–20:00 Jun 30 06:00–09:00, 14:00–17:00
July
Jul 6 08:00–09:00 Jul 7 08:00–12:00 Jul 8 03:00–09:00, 16:00–18:00 Jul 9 05:00–09:00, 14:00–16:00, 18:00–24:00 Jul 11 04:00–06:00, 16:00–21:00, 23:00–24:00 Jul 12 00:00–02:00 Jul 13 17:00–20:00, 23:00–24:00 Jul 14 00:00–02:00, 10:00–11:00 Jul 15 05:00–08:00 Jul 17 06:00–09:00, 11:00–12:00 Jul 19 05:00–09:00 Jul 20 14:00–16:00, 18:00–24:00 Jul 21 06:00–11:00 Jul 23 06:00–10:00 Jul 25 08:00–11:00 Jul 26 04:00–07:00 Jul 27 02:00–04:00, 09:00–11:00, 15:00–18:00 Jul 28 00:00–05:00, 16:00–17:00, 23:00–24:00 Jul 29 00:00–01:00, 05:00–06:00, 12:00–14:00, 23:00–24:00 Jul 30 00:00–02:00, 05:00–08:00, 16:00–19:00, 23:00–24:00 Jul 31 00:00–01:00, 03:00–06:00, 16:00–17:00, 22:00–24:00
August
Aug 1 00:00–06:00, 13:00–14:00 Aug 2 06:00–09:00 Aug 3 03:00–05:00, 22:00–23:00 Aug 6 07:00–09:00 Aug 7 09:00–12:00, 16:00–17:00 Aug 9 03:00–07:00 Aug 10 03:00–07:00, 17:00–19:00 Aug 11 00:00–02:00, 05:00–07:00 Aug 12 05:00–09:00 Aug 14 08:00–12:00 Aug 16 05:00–07:00 Aug 17 00:00–04:00, 06:00–10:00, 22:00–24:00 Aug 18 00:00–01:00 Aug 19 01:00–05:00 Aug 22 20:00–24:00 Aug 24 00:00–07:00, 14:00–24:00 Aug 25 01:00–03:00, 05:00–06:00 Aug 26 21:00–24:00 Aug 27 12:00–16:00, 19:00–22:00 Aug 28 09:00–21:00 Aug 29 09:00–10:00, 17:00–20:00 Aug 30 06:00–10:00, 20:00–24:00 Aug 31 00:00–03:00, 11:00–24:00
September
Sep 1 00:00–01:00, 04:00–07:00 Sep 2 07:00–13:00, 15:00–22:00 Sep 3 11:00–18:00, 20:00–22:00 Sep 4 10:00–17:00, 19:00–22:00 Sep 5 08:00–21:00 Sep 7 00:00–03:00, 08:00–10:00, 13:00–22:00 Sep 8 04:00–08:00 Sep 9 20:00–21:00 Sep 10 17:00–22:00 Sep 11 20:00–22:00 Sep 12 13:00–21:00 Sep 14 01:00–05:00, 13:00–22:00 Sep 16 10:00–11:00 Sep 17 14:00–23:00 Sep 18 10:00–16:00, 19:00–23:00 Sep 19 16:00–22:00 Sep 20 08:00–10:00, 23:00–24:00 Sep 21 00:00–05:00, 14:00–23:00 Sep 22 11:00–21:00 Sep 24 10:00–22:00 Sep 25 13:00–15:00 Sep 26 10:00–11:00, 22:00–24:00 Sep 28 14:00–22:00 Sep 29 16:00–23:00 Sep 30 06:00–09:00, 19:00–22:00
October
Oct 1 07:00–10:00, 16:00–22:00 Oct 3 15:00–17:00 Oct 5 01:00–02:00, 15:00–24:00 Oct 6 00:00–01:00, 11:00–19:00 Oct 7 10:00–15:00, 17:00–22:00 Oct 8 10:00–21:00 Oct 11 01:00–04:00 Oct 12 15:00–23:00 Oct 13 09:00–17:00 Oct 14 09:00–11:00, 20:00–22:00 Oct 15 20:00–22:00 Oct 16 15:00–22:00 Oct 17 17:00–23:00 Oct 18 23:00–24:00 Oct 19 00:00–02:00, 17:00–21:00 Oct 20 08:00–11:00, 14:00–19:00 Oct 21 09:00–11:00, 14:00–19:00 Oct 22 08:00–11:00, 14:00–19:00 Oct 23 22:00–23:00 Oct 24 16:00–19:00 Oct 25 08:00–10:00 Oct 26 14:00–20:00, 22:00–23:00 Oct 27 07:00–11:00 Oct 28 10:00–11:00 Oct 29 06:00–08:00, 18:00–22:00 Oct 30 15:00–18:00
November
Nov 2 17:00–24:00 Nov 3 08:00–20:00 Nov 4 04:00–05:00, 14:00–18:00 Nov 5 07:00–11:00, 21:00–23:00 Nov 6 18:00–22:00 Nov 9 03:00–07:00, 12:00–21:00 Nov 10 21:00–24:00 Nov 11 04:00–10:00 Nov 16 07:00–10:00, 14:00–22:00 Nov 17 01:00–03:00, 15:00–21:00 Nov 18 22:00–23:00 Nov 19 20:00–23:00 Nov 21 14:00–19:00 Nov 22 08:00–11:00 Nov 23 01:00–03:00, 12:00–21:00 Nov 24 05:00–10:00, 13:00–16:00, 20:00–22:00 Nov 25 23:00–24:00 Nov 26 03:00–11:00, 21:00–22:00 Nov 28 21:00–24:00 Nov 30 12:00–19:00
December
Dec 2 06:00–09:00 Dec 3 14:00–17:00 Dec 5 06:00–10:00 Dec 6 13:00–23:00 Dec 7 09:00–11:00, 15:00–16:00 Dec 8 17:00–19:00 Dec 9 13:00–20:00 Dec 11 15:00–18:00 Dec 12 19:00–22:00 Dec 14 15:00–21:00 Dec 15 14:00–19:00 Dec 16 15:00–18:00 Dec 17 07:00–14:00 Dec 20 16:00–23:00 Dec 21 07:00–13:00 Dec 22 20:00–22:00 Dec 23 00:00–06:00, 14:00–15:00 Dec 24 23:00–24:00 Dec 25 00:00–06:00 Dec 27 18:00–19:00, 21:00–24:00 Dec 28 00:00–01:00 Dec 30 19:00–24:00 Dec 31 00:00–03:00, 13:00–21:00