Most often in March, 31 days.
Highest follower count seen that year: 54,173.
January
Jan 3 23:00–24:00 Jan 4 00:00–02:00, 23:00–24:00 Jan 5 00:00–02:00, 22:00–24:00 Jan 6 00:00–02:00, 22:00–24:00 Jan 7 00:00–03:00, 22:00–24:00 Jan 8 00:00–01:00, 23:00–24:00 Jan 9 00:00–01:00, 22:00–24:00 Jan 10 00:00–02:00, 22:00–24:00 Jan 11 00:00–01:00, 22:00–24:00 Jan 12 01:00–03:00, 22:00–24:00 Jan 13 00:00–01:00, 22:00–24:00 Jan 14 00:00–01:00, 22:00–24:00 Jan 15 00:00–01:00, 22:00–24:00 Jan 16 00:00–01:00, 22:00–24:00 Jan 17 00:00–01:00, 22:00–24:00 Jan 18 00:00–02:00, 23:00–24:00 Jan 19 00:00–02:00, 22:00–24:00 Jan 20 00:00–01:00, 22:00–24:00 Jan 21 00:00–01:00, 22:00–24:00 Jan 22 00:00–01:00, 22:00–24:00 Jan 23 00:00–01:00 Jan 24 22:00–24:00 Jan 25 00:00–02:00, 22:00–24:00 Jan 26 00:00–02:00, 22:00–24:00 Jan 27 00:00–02:00, 22:00–24:00 Jan 28 00:00–01:00, 22:00–24:00 Jan 29 00:00–03:00, 22:00–24:00 Jan 30 00:00–01:00, 08:00–10:00, 22:00–24:00 Jan 31 00:00–01:00, 22:00–24:00
February
Feb 1 00:00–01:00, 23:00–24:00 Feb 2 00:00–02:00, 22:00–24:00 Feb 3 00:00–01:00, 23:00–24:00 Feb 4 00:00–01:00, 22:00–24:00 Feb 5 00:00–01:00, 22:00–24:00 Feb 6 00:00–02:00, 22:00–24:00 Feb 7 00:00–01:00, 22:00–24:00 Feb 8 00:00–01:00, 22:00–24:00 Feb 9 00:00–02:00, 23:00–24:00 Feb 10 00:00–02:00, 22:00–24:00 Feb 11 00:00–01:00, 22:00–24:00 Feb 12 00:00–02:00, 23:00–24:00 Feb 13 00:00–02:00, 22:00–24:00 Feb 14 00:00–02:00, 22:00–24:00 Feb 15 00:00–02:00, 23:00–24:00 Feb 16 00:00–02:00, 22:00–24:00 Feb 17 00:00–01:00, 22:00–24:00 Feb 18 00:00–01:00, 22:00–24:00 Feb 19 00:00–01:00, 22:00–24:00 Feb 20 00:00–02:00, 22:00–24:00 Feb 21 00:00–02:00, 22:00–24:00 Feb 22 00:00–02:00, 22:00–24:00 Feb 23 00:00–03:00, 23:00–24:00 Feb 24 00:00–01:00, 22:00–24:00 Feb 25 00:00–02:00, 22:00–24:00 Feb 26 00:00–01:00, 22:00–24:00 Feb 27 00:00–01:00, 23:00–24:00 Feb 28 00:00–02:00, 23:00–24:00
March
Mar 1 00:00–02:00, 22:00–24:00 Mar 2 00:00–01:00, 23:00–24:00 Mar 3 00:00–02:00, 22:00–24:00 Mar 4 00:00–01:00, 22:00–24:00 Mar 5 00:00–02:00, 23:00–24:00 Mar 6 00:00–01:00, 23:00–24:00 Mar 7 00:00–02:00, 22:00–24:00 Mar 8 00:00–02:00, 23:00–24:00 Mar 9 00:00–01:00, 22:00–24:00 Mar 10 00:00–01:00, 22:00–24:00 Mar 11 00:00–01:00, 22:00–24:00 Mar 12 00:00–02:00, 22:00–24:00 Mar 13 00:00–03:00, 22:00–24:00 Mar 14 00:00–02:00 Mar 15 22:00–24:00 Mar 16 00:00–03:00, 23:00–24:00 Mar 17 00:00–02:00, 22:00–24:00 Mar 18 00:00–02:00, 23:00–24:00 Mar 19 00:00–01:00, 23:00–24:00 Mar 20 00:00–02:00, 22:00–24:00 Mar 21 00:00–02:00, 22:00–24:00 Mar 22 00:00–02:00, 23:00–24:00 Mar 23 00:00–02:00 Mar 24 22:00–24:00 Mar 25 00:00–02:00, 23:00–24:00 Mar 26 00:00–01:00, 23:00–24:00 Mar 27 00:00–02:00, 23:00–24:00 Mar 28 00:00–02:00, 22:00–24:00 Mar 29 00:00–02:00, 22:00–24:00 Mar 30 00:00–02:00, 21:00–24:00 Mar 31 00:00–01:00, 22:00–24:00
April
Apr 1 00:00–01:00, 22:00–24:00 Apr 2 00:00–01:00, 22:00–24:00 Apr 3 22:00–24:00 Apr 4 22:00–24:00 Apr 5 00:00–01:00, 22:00–24:00 Apr 6 00:00–01:00, 22:00–24:00 Apr 7 00:00–01:00, 21:00–24:00 Apr 8 00:00–01:00, 22:00–24:00 Apr 9 00:00–01:00, 22:00–24:00 Apr 10 00:00–01:00, 22:00–24:00 Apr 11 00:00–01:00, 22:00–24:00 Apr 12 00:00–01:00, 22:00–24:00 Apr 13 00:00–01:00, 22:00–24:00 Apr 14 00:00–01:00, 22:00–24:00 Apr 15 00:00–01:00, 22:00–24:00 Apr 16 00:00–01:00, 22:00–24:00 Apr 17 00:00–01:00, 21:00–24:00 Apr 18 00:00–01:00, 22:00–24:00 Apr 19 00:00–02:00 Apr 21 22:00–24:00 Apr 22 00:00–01:00, 22:00–24:00 Apr 23 00:00–01:00, 22:00–24:00 Apr 24 22:00–24:00 Apr 25 21:00–24:00 Apr 26 00:00–01:00, 22:00–24:00 Apr 27 00:00–01:00, 21:00–24:00 Apr 28 21:00–24:00 Apr 29 00:00–01:00, 22:00–24:00 Apr 30 22:00–24:00
May
May 1 00:00–01:00, 22:00–24:00 May 2 00:00–01:00, 22:00–24:00 May 3 00:00–02:00, 21:00–24:00 May 4 22:00–23:00 May 5 21:00–24:00 May 6 00:00–01:00, 21:00–23:00 May 7 22:00–24:00 May 8 00:00–01:00, 22:00–24:00 May 9 00:00–01:00, 22:00–24:00 May 10 00:00–01:00, 22:00–24:00 May 11 00:00–01:00, 22:00–24:00 May 12 22:00–24:00 May 13 00:00–01:00, 22:00–24:00 May 14 00:00–01:00, 22:00–24:00 May 15 00:00–01:00, 22:00–24:00 May 16 00:00–01:00, 22:00–24:00 May 17 00:00–01:00, 22:00–24:00 May 18 00:00–01:00, 22:00–24:00 May 19 00:00–01:00, 22:00–24:00 May 20 00:00–01:00, 22:00–24:00 May 21 00:00–01:00, 22:00–24:00 May 22 00:00–01:00, 22:00–24:00 May 23 22:00–24:00 May 24 00:00–01:00, 22:00–24:00 May 25 00:00–01:00, 21:00–24:00 May 26 00:00–01:00, 22:00–24:00 May 27 00:00–01:00, 22:00–24:00 May 28 22:00–24:00 May 29 00:00–01:00, 22:00–24:00 May 30 00:00–01:00, 22:00–24:00 May 31 00:00–02:00, 21:00–24:00
June
Jun 1 00:00–01:00, 21:00–24:00 Jun 2 22:00–24:00 Jun 3 21:00–24:00 Jun 4 00:00–01:00, 22:00–24:00 Jun 5 00:00–01:00, 21:00–24:00 Jun 6 00:00–01:00, 21:00–24:00 Jun 7 00:00–01:00, 22:00–24:00 Jun 8 00:00–01:00, 22:00–24:00 Jun 9 21:00–24:00 Jun 10 00:00–01:00, 22:00–24:00 Jun 11 00:00–01:00, 22:00–23:00 Jun 12 00:00–01:00, 21:00–24:00 Jun 13 00:00–01:00, 22:00–24:00 Jun 14 00:00–01:00, 22:00–24:00 Jun 15 00:00–01:00, 22:00–24:00 Jun 16 22:00–24:00 Jun 17 00:00–01:00, 22:00–24:00 Jun 18 00:00–01:00, 22:00–24:00 Jun 19 00:00–01:00, 22:00–24:00 Jun 20 00:00–01:00, 22:00–24:00 Jun 21 00:00–01:00, 22:00–24:00 Jun 22 00:00–01:00, 22:00–24:00 Jun 23 00:00–01:00, 22:00–24:00 Jun 24 00:00–01:00, 22:00–24:00 Jun 25 00:00–01:00, 22:00–24:00 Jun 26 00:00–01:00, 22:00–24:00 Jun 27 00:00–01:00, 22:00–24:00 Jun 28 00:00–01:00, 22:00–24:00 Jun 29 00:00–01:00, 22:00–24:00 Jun 30 00:00–01:00, 22:00–24:00
July
Jul 1 00:00–01:00, 22:00–24:00 Jul 2 00:00–01:00, 22:00–24:00 Jul 3 00:00–01:00, 22:00–24:00 Jul 4 00:00–01:00, 22:00–24:00 Jul 5 00:00–01:00, 22:00–24:00 Jul 6 00:00–01:00, 22:00–24:00 Jul 7 00:00–01:00, 22:00–24:00 Jul 8 21:00–24:00 Jul 9 00:00–01:00, 22:00–24:00 Jul 10 22:00–24:00 Jul 11 00:00–01:00, 22:00–24:00 Jul 12 00:00–01:00, 22:00–24:00 Jul 13 00:00–01:00, 22:00–24:00 Jul 14 00:00–01:00, 22:00–24:00 Jul 15 00:00–01:00, 22:00–24:00 Jul 16 00:00–01:00, 22:00–24:00 Jul 17 22:00–24:00 Jul 18 00:00–01:00, 22:00–24:00 Jul 19 00:00–01:00, 22:00–24:00 Jul 20 00:00–01:00, 22:00–24:00 Jul 21 21:00–24:00 Jul 22 22:00–24:00 Jul 23 00:00–01:00, 22:00–24:00 Jul 24 00:00–01:00, 21:00–24:00 Jul 25 00:00–01:00, 22:00–24:00 Jul 26 00:00–01:00, 21:00–24:00 Jul 27 00:00–01:00, 22:00–24:00 Jul 28 21:00–24:00 Jul 29 22:00–24:00 Jul 30 00:00–01:00, 22:00–24:00 Jul 31 22:00–24:00
August
Aug 1 00:00–01:00, 21:00–24:00 Aug 2 00:00–01:00, 22:00–24:00 Aug 3 00:00–01:00, 22:00–24:00 Aug 4 21:00–24:00 Aug 5 22:00–24:00 Aug 6 00:00–01:00, 22:00–24:00 Aug 17 21:00–24:00 Aug 18 00:00–01:00, 21:00–24:00 Aug 19 00:00–01:00, 22:00–24:00 Aug 20 22:00–24:00 Aug 21 22:00–24:00 Aug 28 22:00–24:00 Aug 29 22:00–24:00 Aug 30 22:00–24:00 Aug 31 00:00–01:00, 22:00–24:00
September
Sep 1 21:00–24:00 Sep 2 21:00–24:00 Sep 3 00:00–01:00, 22:00–24:00 Sep 4 22:00–24:00 Sep 5 21:00–24:00 Sep 6 00:00–01:00, 22:00–24:00 Sep 7 00:00–01:00, 22:00–24:00 Sep 8 00:00–01:00 Sep 9 22:00–24:00 Sep 10 00:00–01:00, 22:00–24:00 Sep 11 22:00–24:00 Sep 12 00:00–01:00, 22:00–24:00 Sep 13 21:00–24:00 Sep 14 00:00–02:00, 21:00–24:00 Sep 15 21:00–24:00 Sep 16 22:00–24:00 Sep 17 00:00–01:00, 21:00–24:00 Sep 18 21:00–24:00 Sep 19 21:00–24:00 Sep 20 00:00–01:00, 22:00–24:00 Sep 21 00:00–01:00, 21:00–24:00 Sep 22 21:00–24:00 Sep 23 22:00–23:00 Sep 24 00:00–01:00, 21:00–24:00 Sep 25 00:00–01:00, 22:00–24:00 Sep 26 22:00–24:00 Sep 27 21:00–24:00 Sep 28 00:00–01:00, 22:00–24:00 Sep 29 22:00–24:00 Sep 30 22:00–23:00
October
Oct 1 21:00–24:00 Oct 2 22:00–24:00 Oct 3 00:00–01:00, 22:00–24:00 Oct 4 22:00–24:00 Oct 5 00:00–01:00, 21:00–24:00 Oct 6 22:00–24:00 Oct 7 00:00–01:00, 22:00–24:00 Oct 8 22:00–24:00 Oct 9 00:00–01:00, 22:00–24:00 Oct 10 00:00–01:00, 22:00–24:00 Oct 11 22:00–24:00 Oct 12 22:00–24:00 Oct 13 22:00–24:00 Oct 14 00:00–01:00, 22:00–24:00 Oct 15 22:00–24:00 Oct 16 22:00–24:00 Oct 17 22:00–24:00 Oct 18 00:00–01:00, 22:00–24:00 Oct 19 00:00–01:00, 22:00–24:00 Oct 20 00:00–01:00, 22:00–24:00 Oct 21 22:00–24:00 Oct 22 22:00–24:00 Oct 23 22:00–24:00 Oct 24 00:00–01:00, 22:00–24:00 Oct 25 22:00–24:00 Oct 26 00:00–01:00, 23:00–24:00 Oct 27 00:00–01:00, 23:00–24:00 Oct 28 00:00–01:00, 23:00–24:00 Oct 29 00:00–01:00, 23:00–24:00 Oct 30 00:00–01:00, 23:00–24:00 Oct 31 00:00–01:00, 23:00–24:00
November
Nov 1 00:00–01:00, 23:00–24:00 Nov 2 00:00–02:00, 23:00–24:00 Nov 3 00:00–02:00, 23:00–24:00 Nov 4 00:00–02:00, 23:00–24:00 Nov 5 00:00–01:00, 23:00–24:00 Nov 6 00:00–01:00, 23:00–24:00 Nov 7 00:00–01:00, 23:00–24:00 Nov 8 00:00–02:00, 22:00–24:00 Nov 9 22:00–24:00 Nov 10 22:00–24:00 Nov 11 00:00–01:00 Nov 12 17:00–20:00, 22:00–24:00 Nov 14 21:00–24:00 Nov 15 07:00–09:00 Nov 16 07:00–10:00, 22:00–24:00 Nov 17 00:00–01:00, 22:00–24:00 Nov 18 00:00–01:00, 22:00–24:00 Nov 19 00:00–01:00, 21:00–23:00 Nov 20 07:00–08:00, 23:00–24:00 Nov 21 00:00–01:00, 22:00–24:00 Nov 22 07:00–10:00, 23:00–24:00 Nov 23 00:00–02:00, 22:00–24:00 Nov 24 00:00–01:00, 23:00–24:00 Nov 25 00:00–01:00, 22:00–24:00 Nov 26 00:00–01:00, 22:00–24:00 Nov 27 00:00–01:00, 22:00–24:00 Nov 28 00:00–01:00, 22:00–24:00 Nov 29 00:00–02:00, 23:00–24:00 Nov 30 00:00–01:00, 23:00–24:00
December
Dec 1 00:00–01:00, 23:00–24:00 Dec 2 00:00–02:00, 23:00–24:00 Dec 3 00:00–01:00, 23:00–24:00 Dec 4 00:00–01:00, 23:00–24:00 Dec 5 00:00–01:00, 23:00–24:00 Dec 6 00:00–02:00 Dec 7 01:00–04:00, 23:00–24:00 Dec 8 00:00–02:00 Dec 9 04:00–06:00 Dec 10 04:00–06:00, 22:00–24:00 Dec 11 07:00–09:00 Dec 12 01:00–03:00, 23:00–24:00 Dec 14 23:00–24:00 Dec 15 00:00–02:00, 23:00–24:00 Dec 16 00:00–01:00, 23:00–24:00 Dec 17 00:00–02:00, 23:00–24:00 Dec 18 00:00–02:00, 23:00–24:00 Dec 19 00:00–02:00, 23:00–24:00 Dec 20 00:00–02:00, 23:00–24:00 Dec 21 00:00–01:00, 23:00–24:00 Dec 22 00:00–02:00, 23:00–24:00 Dec 23 00:00–02:00, 21:00–24:00 Dec 24 23:00–24:00 Dec 25 00:00–03:00, 23:00–24:00 Dec 26 00:00–02:00, 23:00–24:00 Dec 27 00:00–01:00, 23:00–24:00 Dec 28 00:00–01:00, 23:00–24:00 Dec 29 00:00–02:00, 23:00–24:00 Dec 30 00:00–01:00, 23:00–24:00 Dec 31 00:00–03:00