Most often in March, 30 days.
Highest follower count seen that year: 2,784.
January
Jan 31 05:00–06:00, 17:00–20:00
February
Feb 1 06:00–07:00 Feb 3 16:00–18:00, 21:00–23:00 Feb 4 06:00–07:00, 15:00–17:00, 20:00–24:00 Feb 5 00:00–01:00, 07:00–08:00 Feb 6 08:00–09:00, 16:00–19:00 Feb 7 20:00–24:00 Feb 8 01:00–02:00, 21:00–24:00 Feb 9 06:00–08:00 Feb 10 07:00–09:00, 20:00–23:00 Feb 11 07:00–08:00, 23:00–24:00 Feb 12 03:00–04:00, 07:00–09:00, 22:00–24:00 Feb 13 05:00–10:00, 15:00–17:00, 19:00–22:00 Feb 14 06:00–09:00, 20:00–22:00 Feb 15 07:00–10:00, 23:00–24:00 Feb 16 05:00–09:00, 20:00–22:00 Feb 17 07:00–09:00, 19:00–21:00 Feb 18 00:00–01:00, 06:00–07:00, 15:00–17:00, 21:00–22:00 Feb 19 06:00–07:00, 20:00–24:00 Feb 20 00:00–01:00, 06:00–08:00, 20:00–23:00 Feb 21 16:00–20:00, 22:00–24:00 Feb 22 04:00–09:00 Feb 23 01:00–02:00, 07:00–09:00, 20:00–22:00 Feb 24 07:00–08:00, 23:00–24:00 Feb 25 00:00–01:00, 07:00–08:00, 21:00–23:00 Feb 26 06:00–09:00, 19:00–21:00 Feb 27 15:00–17:00, 19:00–22:00 Feb 28 17:00–19:00
March
Mar 2 07:00–08:00, 18:00–19:00 Mar 3 07:00–09:00, 21:00–23:00 Mar 4 07:00–08:00, 19:00–20:00, 23:00–24:00 Mar 5 06:00–08:00, 20:00–21:00 Mar 6 07:00–08:00 Mar 7 07:00–08:00, 16:00–19:00, 21:00–22:00 Mar 8 08:00–10:00, 17:00–21:00 Mar 9 02:00–03:00, 06:00–08:00 Mar 10 01:00–08:00 Mar 11 07:00–08:00, 19:00–21:00 Mar 12 07:00–08:00 Mar 13 06:00–07:00, 19:00–22:00 Mar 14 06:00–08:00, 22:00–23:00 Mar 15 07:00–08:00 Mar 16 07:00–08:00, 15:00–16:00, 20:00–22:00 Mar 17 07:00–09:00, 19:00–21:00 Mar 18 06:00–08:00 Mar 19 06:00–08:00, 13:00–19:00 Mar 20 07:00–08:00, 14:00–16:00 Mar 21 06:00–08:00, 15:00–18:00 Mar 22 06:00–09:00, 22:00–23:00 Mar 23 05:00–09:00, 18:00–19:00 Mar 24 05:00–07:00, 18:00–23:00 Mar 25 00:00–01:00, 06:00–08:00, 17:00–20:00 Mar 26 06:00–09:00, 20:00–23:00 Mar 27 14:00–17:00, 20:00–21:00 Mar 28 04:00–06:00, 18:00–19:00, 21:00–23:00 Mar 29 05:00–08:00, 19:00–21:00 Mar 30 05:00–09:00, 22:00–23:00 Mar 31 00:00–02:00, 06:00–07:00, 22:00–23:00
April
Apr 1 06:00–08:00, 14:00–16:00, 18:00–20:00 Apr 2 06:00–08:00, 16:00–21:00 Apr 3 14:00–15:00, 17:00–18:00, 20:00–21:00 Apr 4 05:00–07:00, 21:00–23:00 Apr 5 05:00–09:00, 21:00–22:00 Apr 6 06:00–07:00 Apr 7 20:00–21:00 Apr 8 05:00–09:00, 14:00–16:00 Apr 9 06:00–08:00, 22:00–23:00 Apr 10 06:00–09:00, 18:00–20:00 Apr 11 05:00–08:00, 15:00–16:00 Apr 12 05:00–07:00 Apr 17 05:00–07:00 Apr 22 04:00–06:00 Apr 24 04:00–06:00 Apr 25 06:00–07:00 Apr 27 05:00–07:00 Apr 29 05:00–07:00
May
May 1 06:00–07:00 May 4 05:00–07:00 May 5 05:00–06:00 May 7 16:00–17:00, 19:00–21:00, 23:00–24:00 May 8 05:00–07:00, 19:00–22:00 May 9 16:00–17:00, 22:00–24:00 May 10 01:00–02:00 May 13 00:00–02:00 May 14 17:00–23:00 May 15 16:00–23:00 May 16 06:00–07:00, 19:00–23:00 May 17 06:00–07:00 May 18 17:00–21:00 May 19 06:00–07:00, 20:00–21:00 May 20 06:00–08:00 May 21 00:00–01:00, 06:00–08:00, 21:00–22:00 May 22 06:00–08:00, 15:00–17:00, 19:00–21:00 May 23 05:00–06:00, 20:00–22:00 May 25 01:00–05:00 May 26 20:00–22:00 May 27 06:00–08:00, 17:00–18:00 May 28 06:00–08:00, 15:00–16:00, 19:00–23:00 May 30 06:00–07:00, 19:00–20:00, 22:00–23:00 May 31 05:00–07:00
June
Jun 1 06:00–07:00 Jun 4 04:00–05:00 Jun 5 15:00–17:00 Jun 7 05:00–06:00 Jun 8 07:00–08:00 Jun 9 23:00–24:00 Jun 10 06:00–07:00, 14:00–15:00, 21:00–23:00 Jun 11 06:00–07:00, 21:00–23:00 Jun 12 06:00–07:00 Jun 13 21:00–23:00 Jun 14 06:00–07:00, 23:00–24:00 Jun 15 21:00–24:00 Jun 16 06:00–08:00 Jun 17 23:00–24:00 Jun 18 00:00–02:00, 07:00–08:00, 13:00–20:00 Jun 19 05:00–08:00, 16:00–23:00 Jun 20 05:00–06:00, 19:00–22:00 Jun 21 07:00–08:00 Jun 22 04:00–07:00 Jun 23 01:00–03:00, 05:00–08:00, 20:00–21:00 Jun 24 05:00–06:00, 21:00–22:00 Jun 25 05:00–06:00 Jun 27 02:00–03:00, 05:00–06:00, 22:00–24:00 Jun 28 15:00–17:00, 19:00–24:00 Jun 29 03:00–08:00 Jun 30 07:00–09:00
July
Jul 1 05:00–07:00 Jul 2 06:00–08:00 Jul 3 00:00–03:00, 15:00–19:00, 21:00–22:00 Jul 4 17:00–18:00, 20:00–21:00 Jul 5 16:00–18:00, 20:00–23:00 Jul 7 06:00–07:00, 22:00–24:00 Jul 8 00:00–02:00, 04:00–05:00, 15:00–18:00, 22:00–24:00 Jul 9 07:00–08:00, 20:00–24:00 Jul 10 18:00–20:00, 22:00–23:00 Jul 11 01:00–02:00, 17:00–18:00, 23:00–24:00 Jul 14 15:00–17:00 Jul 30 06:00–07:00, 17:00–20:00 Jul 31 06:00–08:00
August
Aug 1 06:00–07:00 Aug 2 20:00–21:00 Aug 3 08:00–09:00, 23:00–24:00 Aug 4 00:00–01:00, 07:00–09:00, 18:00–20:00, 22:00–23:00 Aug 6 01:00–02:00, 05:00–07:00, 18:00–20:00 Aug 7 23:00–24:00 Aug 8 00:00–01:00, 06:00–08:00, 21:00–22:00 Aug 9 05:00–07:00 Aug 11 05:00–08:00, 17:00–19:00 Aug 12 02:00–03:00, 06:00–07:00 Aug 13 22:00–24:00 Aug 14 06:00–08:00, 20:00–23:00 Aug 15 03:00–06:00, 18:00–22:00 Aug 16 05:00–07:00, 18:00–23:00 Aug 17 18:00–21:00 Aug 18 07:00–08:00, 23:00–24:00 Aug 19 06:00–08:00, 14:00–16:00 Aug 20 06:00–08:00, 21:00–24:00 Aug 21 00:00–01:00 Aug 23 07:00–08:00, 20:00–21:00 Aug 24 06:00–07:00 Aug 25 21:00–23:00 Aug 26 06:00–08:00, 14:00–15:00, 18:00–23:00 Aug 27 18:00–23:00 Aug 28 01:00–03:00, 20:00–23:00 Aug 29 18:00–21:00 Aug 31 03:00–04:00, 07:00–08:00
September
Sep 1 06:00–09:00, 16:00–18:00, 23:00–24:00 Sep 2 06:00–08:00 Sep 3 07:00–08:00, 15:00–17:00, 19:00–20:00 Sep 4 05:00–08:00 Sep 5 05:00–07:00, 17:00–18:00, 20:00–23:00 Sep 6 05:00–07:00 Sep 9 22:00–23:00 Sep 10 07:00–09:00, 18:00–21:00 Sep 11 15:00–16:00, 20:00–21:00 Sep 12 04:00–07:00, 19:00–21:00 Sep 13 00:00–01:00, 05:00–07:00, 16:00–18:00 Sep 14 07:00–08:00 Sep 16 07:00–08:00, 14:00–16:00, 22:00–23:00 Sep 17 06:00–07:00 Sep 18 15:00–17:00 Sep 19 06:00–07:00 Sep 20 06:00–07:00, 17:00–18:00 Sep 21 06:00–08:00 Sep 22 01:00–03:00, 05:00–07:00, 22:00–24:00 Sep 23 00:00–02:00, 15:00–16:00, 20:00–21:00 Sep 24 17:00–23:00 Sep 25 07:00–09:00, 15:00–20:00 Sep 26 19:00–23:00 Sep 27 06:00–08:00, 23:00–24:00 Sep 28 06:00–07:00 Sep 29 06:00–08:00 Sep 30 06:00–07:00
October
Oct 1 06:00–07:00, 15:00–17:00 Oct 2 14:00–19:00 Oct 3 18:00–22:00 Oct 4 05:00–08:00, 17:00–18:00 Oct 5 00:00–02:00, 22:00–24:00 Oct 6 00:00–01:00, 06:00–08:00, 21:00–22:00 Oct 7 19:00–21:00 Oct 8 05:00–08:00 Oct 9 06:00–08:00 Oct 10 19:00–21:00 Oct 11 07:00–08:00, 16:00–19:00, 21:00–24:00 Oct 12 07:00–09:00 Oct 13 07:00–08:00, 21:00–23:00 Oct 14 16:00–17:00, 19:00–21:00 Oct 15 06:00–07:00 Oct 16 20:00–23:00 Oct 17 20:00–23:00 Oct 19 07:00–08:00 Oct 20 20:00–21:00 Oct 21 07:00–08:00 Oct 22 07:00–09:00 Oct 27 05:00–07:00, 18:00–21:00 Oct 28 20:00–21:00 Oct 29 16:00–21:00 Oct 30 15:00–16:00, 19:00–21:00
November
Nov 1 17:00–19:00 Nov 2 08:00–09:00 Nov 3 18:00–20:00 Nov 4 07:00–08:00 Nov 5 15:00–20:00, 22:00–23:00 Nov 6 09:00–10:00, 15:00–20:00 Nov 7 20:00–22:00 Nov 10 08:00–09:00, 20:00–21:00 Nov 11 22:00–23:00 Nov 12 07:00–08:00 Nov 13 08:00–09:00, 15:00–18:00, 20:00–22:00 Nov 14 07:00–08:00 Nov 15 08:00–09:00, 17:00–19:00 Nov 16 09:00–10:00, 21:00–24:00 Nov 17 07:00–10:00, 22:00–24:00 Nov 18 15:00–17:00, 21:00–22:00 Nov 19 08:00–10:00, 19:00–23:00 Nov 20 17:00–19:00 Nov 22 17:00–19:00, 23:00–24:00 Nov 23 00:00–01:00, 08:00–09:00, 17:00–19:00 Nov 24 07:00–09:00, 20:00–22:00 Nov 25 08:00–10:00, 16:00–17:00 Nov 26 17:00–18:00, 22:00–24:00 Nov 27 09:00–10:00 Nov 28 08:00–09:00, 23:00–24:00 Nov 29 08:00–10:00, 23:00–24:00 Nov 30 00:00–01:00, 08:00–09:00
December
Dec 1 08:00–09:00 Dec 2 09:00–10:00 Dec 4 06:00–09:00 Dec 5 08:00–09:00 Dec 6 07:00–09:00 Dec 7 07:00–08:00, 23:00–24:00 Dec 8 07:00–09:00, 20:00–23:00 Dec 9 07:00–09:00, 15:00–17:00 Dec 10 08:00–09:00 Dec 11 23:00–24:00 Dec 12 00:00–02:00 Dec 13 06:00–07:00, 18:00–19:00 Dec 14 08:00–09:00, 20:00–22:00 Dec 15 08:00–10:00, 19:00–22:00 Dec 17 17:00–18:00 Dec 18 06:00–08:00 Dec 19 08:00–09:00, 21:00–22:00 Dec 20 17:00–19:00 Dec 21 22:00–23:00 Dec 22 07:00–09:00, 22:00–23:00 Dec 23 16:00–17:00 Dec 24 20:00–23:00 Dec 27 17:00–21:00 Dec 28 16:00–18:00 Dec 30 15:00–17:00, 19:00–22:00 Dec 31 08:00–09:00, 23:00–24:00