Most often in January, 30 days.
Highest follower count seen that year: 30,930.
January
Jan 2 07:00–11:00 Jan 3 07:00–11:00 Jan 4 07:00–14:00 Jan 5 07:00–14:00 Jan 6 07:00–08:00, 10:00–13:00 Jan 7 07:00–10:00 Jan 8 07:00–10:00 Jan 9 07:00–11:00 Jan 10 06:00–11:00 Jan 11 07:00–11:00 Jan 12 07:00–08:00, 10:00–14:00 Jan 13 07:00–13:00 Jan 14 07:00–12:00 Jan 15 06:00–13:00 Jan 16 07:00–13:00 Jan 17 07:00–11:00 Jan 18 07:00–12:00 Jan 19 07:00–12:00 Jan 20 06:00–08:00 Jan 21 06:00–11:00 Jan 22 07:00–12:00 Jan 23 07:00–13:00 Jan 24 07:00–10:00 Jan 25 07:00–11:00 Jan 26 07:00–12:00 Jan 27 07:00–13:00 Jan 28 07:00–12:00 Jan 29 07:00–13:00 Jan 30 07:00–13:00 Jan 31 06:00–12:00
February
Feb 1 07:00–13:00 Feb 3 07:00–13:00 Feb 4 06:00–11:00 Feb 5 07:00–11:00 Feb 6 07:00–12:00 Feb 7 07:00–13:00 Feb 8 07:00–11:00 Feb 9 07:00–12:00 Feb 10 07:00–10:00 Feb 11 07:00–12:00 Feb 12 07:00–12:00 Feb 13 07:00–12:00 Feb 14 07:00–13:00 Feb 15 08:00–12:00 Feb 16 07:00–11:00 Feb 17 07:00–13:00 Feb 18 07:00–11:00 Feb 19 07:00–11:00 Feb 20 07:00–12:00 Feb 21 07:00–11:00 Feb 22 07:00–12:00 Feb 23 07:00–12:00 Feb 24 07:00–11:00 Feb 25 07:00–12:00 Feb 26 07:00–12:00 Feb 27 07:00–12:00 Feb 28 07:00–12:00
March
Mar 2 07:00–10:00 Mar 3 07:00–12:00 Mar 4 07:00–13:00 Mar 5 07:00–11:00 Mar 7 07:00–12:00 Mar 8 07:00–11:00 Mar 9 07:00–10:00 Mar 10 07:00–11:00 Mar 11 07:00–11:00 Mar 12 07:00–11:00 Mar 13 07:00–09:00 Mar 14 07:00–11:00 Mar 15 07:00–12:00 Mar 17 07:00–12:00 Mar 18 07:00–12:00 Mar 19 07:00–11:00 Mar 20 07:00–10:00 Mar 21 07:00–13:00 Mar 22 07:00–13:00 Mar 23 07:00–12:00 Mar 24 07:00–12:00 Mar 25 07:00–12:00 Mar 26 07:00–12:00 Mar 27 07:00–11:00 Mar 28 07:00–12:00 Mar 29 07:00–13:00 Mar 30 06:00–13:00 Mar 31 06:00–10:00
April
Apr 1 06:00–10:00 Apr 2 06:00–10:00 Apr 3 06:00–10:00 Apr 4 06:00–11:00 Apr 5 06:00–11:00 Apr 6 06:00–11:00 Apr 7 06:00–07:00 Apr 8 07:00–11:00 Apr 9 06:00–10:00 Apr 10 06:00–10:00 Apr 11 06:00–10:00 Apr 12 06:00–11:00 Apr 13 06:00–11:00 Apr 14 06:00–12:00 Apr 15 06:00–12:00 Apr 16 06:00–10:00 Apr 17 06:00–11:00 Apr 18 06:00–10:00 Apr 19 08:00–11:00 Apr 21 07:00–10:00 Apr 22 06:00–09:00 Apr 25 06:00–11:00 Apr 26 06:00–10:00 Apr 27 06:00–12:00 Apr 28 06:00–11:00 Apr 29 06:00–10:00 Apr 30 06:00–11:00
May
May 1 06:00–08:00 May 2 07:00–11:00 May 3 06:00–07:00 May 4 06:00–10:00 May 5 06:00–11:00 May 6 06:00–10:00 May 7 06:00–11:00 May 8 06:00–10:00 May 9 06:00–11:00 May 10 06:00–11:00 May 11 06:00–10:00 May 12 07:00–11:00 May 13 06:00–12:00 May 14 06:00–08:00 May 15 06:00–12:00 May 16 06:00–11:00 May 17 06:00–11:00 May 18 06:00–10:00 May 19 06:00–10:00 May 20 06:00–12:00 May 21 06:00–11:00 May 22 06:00–11:00 May 25 06:00–09:00 May 26 06:00–11:00 May 27 06:00–11:00 May 28 06:00–11:00 May 29 06:00–12:00 May 30 06:00–12:00 May 31 06:00–13:00
June
Jun 1 07:00–09:00 Jun 2 06:00–12:00 Jun 3 06:00–10:00 Jun 4 06:00–11:00 Jun 5 06:00–08:00 Jun 6 06:00–11:00 Jun 7 06:00–11:00 Jun 9 06:00–10:00 Jun 10 06:00–12:00 Jun 11 06:00–09:00 Jun 12 06:00–11:00 Jun 13 06:00–12:00 Jun 15 06:00–11:00 Jun 16 06:00–11:00 Jun 17 06:00–10:00 Jun 18 06:00–10:00 Jun 19 06:00–08:00 Jun 20 06:00–12:00 Jun 21 06:00–08:00 Jun 22 06:00–11:00 Jun 23 06:00–12:00 Jun 24 06:00–09:00 Jun 25 06:00–11:00 Jun 26 06:00–12:00 Jun 27 06:00–13:00 Jun 28 07:00–09:00 Jun 29 06:00–07:00 Jun 30 06:00–10:00
July
Jul 1 06:00–10:00 Jul 3 06:00–09:00 Jul 4 06:00–11:00 Jul 5 07:00–10:00 Jul 6 07:00–13:00 Jul 7 06:00–13:00 Jul 8 07:00–12:00 Jul 9 07:00–11:00 Jul 10 07:00–12:00 Jul 11 06:00–11:00 Jul 14 07:00–11:00 Jul 15 06:00–11:00 Jul 16 07:00–09:00 Jul 17 07:00–10:00 Jul 18 06:00–10:00 Jul 19 06:00–10:00 Jul 21 06:00–12:00 Jul 22 06:00–11:00 Jul 23 07:00–11:00 Jul 24 07:00–11:00 Jul 27 07:00–11:00 Jul 28 07:00–11:00 Jul 29 06:00–10:00 Jul 30 06:00–10:00 Jul 31 06:00–13:00
August
Aug 1 06:00–11:00 Aug 2 06:00–11:00 Aug 4 06:00–11:00 Aug 5 07:00–10:00 Aug 6 07:00–09:00 Aug 7 05:00–07:00 Aug 13 06:00–10:00 Aug 14 06:00–10:00 Aug 15 06:00–11:00 Aug 17 06:00–10:00 Aug 18 06:00–11:00 Aug 19 06:00–11:00 Aug 20 06:00–12:00 Aug 21 07:00–11:00 Aug 22 06:00–11:00 Aug 23 07:00–10:00 Aug 25 07:00–15:00 Aug 26 06:00–12:00 Aug 27 06:00–12:00 Aug 28 07:00–10:00 Aug 29 06:00–08:00 Aug 30 06:00–11:00
September
Sep 1 06:00–11:00 Sep 2 07:00–10:00 Sep 3 06:00–10:00 Sep 4 06:00–11:00 Sep 5 07:00–10:00 Sep 6 07:00–10:00 Sep 7 07:00–12:00 Sep 8 07:00–09:00 Sep 10 06:00–09:00 Sep 19 07:00–11:00 Sep 20 07:00–11:00 Sep 21 07:00–10:00 Sep 22 07:00–10:00 Sep 23 06:00–10:00 Sep 24 06:00–11:00 Sep 25 07:00–11:00 Sep 26 06:00–12:00 Sep 29 06:00–12:00 Sep 30 07:00–12:00
October
Oct 1 06:00–11:00 Oct 2 06:00–10:00 Oct 3 06:00–10:00 Oct 5 07:00–12:00 Oct 6 06:00–08:00 Oct 7 06:00–10:00 Oct 9 06:00–10:00 Oct 10 06:00–11:00 Oct 12 07:00–11:00 Oct 13 06:00–11:00 Oct 14 06:00–11:00 Oct 15 07:00–11:00 Oct 16 07:00–11:00 Oct 17 06:00–11:00 Oct 18 07:00–10:00 Oct 19 06:00–10:00 Oct 20 06:00–11:00 Oct 21 07:00–11:00 Oct 22 06:00–10:00 Oct 23 07:00–11:00 Oct 24 07:00–11:00 Oct 25 07:00–11:00 Oct 26 07:00–11:00 Oct 27 07:00–11:00 Oct 28 07:00–12:00 Oct 29 08:00–11:00 Oct 30 08:00–11:00 Oct 31 08:00–11:00
November
Nov 1 07:00–13:00 Nov 2 08:00–12:00 Nov 3 07:00–12:00 Nov 4 08:00–11:00 Nov 5 07:00–12:00 Nov 6 08:00–10:00 Nov 7 07:00–11:00 Nov 10 08:00–11:00 Nov 11 08:00–11:00 Nov 12 08:00–12:00 Nov 13 08:00–11:00 Nov 14 07:00–12:00 Nov 15 08:00–12:00 Nov 16 07:00–12:00 Nov 17 07:00–13:00 Nov 18 08:00–12:00 Nov 19 08:00–13:00 Nov 20 08:00–11:00 Nov 21 08:00–13:00 Nov 22 08:00–11:00 Nov 24 08:00–12:00 Nov 26 08:00–10:00 Nov 27 08:00–12:00 Nov 28 08:00–12:00 Nov 29 08:00–12:00
December
Dec 1 08:00–11:00 Dec 4 07:00–11:00 Dec 5 08:00–11:00 Dec 8 07:00–11:00 Dec 9 07:00–10:00 Dec 10 09:00–11:00 Dec 11 08:00–12:00 Dec 12 08:00–11:00 Dec 13 08:00–12:00 Dec 15 07:00–10:00 Dec 16 08:00–11:00 Dec 17 08:00–10:00 Dec 18 07:00–11:00 Dec 19 08:00–11:00 Dec 22 07:00–11:00 Dec 29 07:00–10:00 Dec 30 07:00–12:00 Dec 31 07:00–10:00