Most often in August, 27 days.
Highest follower count seen that year: 9,654.
January
Jan 9 21:00–24:00 Jan 10 00:00–03:00, 19:00–21:00 Jan 11 22:00–24:00 Jan 12 00:00–05:00, 17:00–20:00, 22:00–24:00 Jan 13 00:00–03:00 Jan 14 00:00–04:00, 21:00–22:00 Jan 15 09:00–14:00, 18:00–20:00 Jan 16 01:00–07:00, 20:00–22:00 Jan 17 00:00–03:00 Jan 23 08:00–10:00 Jan 24 02:00–05:00 Jan 25 09:00–10:00 Jan 26 01:00–06:00, 11:00–19:00 Jan 27 02:00–07:00, 12:00–17:00 Jan 28 03:00–06:00, 11:00–13:00 Jan 31 10:00–17:00
February
Feb 1 04:00–06:00, 09:00–11:00 Feb 3 10:00–13:00 Feb 4 05:00–09:00, 15:00–18:00 Feb 5 05:00–06:00 Feb 6 07:00–09:00, 14:00–16:00 Feb 12 10:00–14:00 Feb 13 05:00–08:00, 11:00–14:00 Feb 14 05:00–09:00 Feb 18 05:00–08:00, 11:00–13:00 Feb 19 05:00–08:00, 10:00–13:00 Feb 20 05:00–08:00, 10:00–13:00 Feb 21 05:00–07:00, 10:00–14:00 Feb 24 05:00–07:00, 10:00–14:00 Feb 25 05:00–07:00, 09:00–13:00 Feb 26 05:00–08:00, 12:00–13:00 Feb 27 05:00–07:00 Feb 28 05:00–08:00, 10:00–14:00
March
Mar 3 05:00–08:00, 11:00–13:00 Mar 4 05:00–08:00, 15:00–18:00 Mar 5 06:00–08:00, 10:00–13:00 Mar 6 05:00–14:00 Mar 7 05:00–07:00, 10:00–13:00 Mar 9 16:00–19:00 Mar 10 05:00–07:00, 10:00–14:00 Mar 11 05:00–09:00 Mar 12 05:00–09:00, 12:00–14:00 Mar 13 06:00–09:00, 11:00–16:00 Mar 14 05:00–12:00 Mar 17 08:00–14:00 Mar 18 08:00–16:00 Mar 19 05:00–14:00 Mar 20 05:00–07:00, 09:00–14:00 Mar 21 18:00–21:00 Mar 22 14:00–17:00 Mar 23 06:00–08:00, 16:00–20:00 Mar 24 06:00–10:00, 17:00–20:00 Mar 25 07:00–10:00, 17:00–21:00 Mar 26 19:00–21:00 Mar 27 07:00–09:00, 12:00–14:00, 18:00–22:00 Mar 28 11:00–13:00 Mar 30 18:00–20:00 Mar 31 05:00–07:00
April
Apr 1 05:00–12:00, 17:00–18:00 Apr 2 05:00–11:00, 17:00–20:00 Apr 3 05:00–08:00, 10:00–12:00 Apr 5 13:00–14:00, 17:00–20:00 Apr 7 10:00–12:00, 19:00–21:00 Apr 8 10:00–14:00 Apr 9 04:00–08:00, 15:00–16:00 Apr 10 08:00–09:00, 18:00–20:00 Apr 11 05:00–07:00, 10:00–13:00, 18:00–20:00 Apr 12 17:00–18:00 Apr 13 17:00–20:00 Apr 14 05:00–15:00 Apr 15 05:00–07:00, 10:00–15:00 Apr 16 08:00–13:00 Apr 17 05:00–07:00, 09:00–16:00 Apr 18 08:00–13:00 Apr 21 08:00–09:00, 12:00–15:00 Apr 22 05:00–07:00, 10:00–15:00 Apr 23 07:00–15:00 Apr 24 07:00–09:00, 11:00–13:00, 16:00–20:00 Apr 25 07:00–09:00, 11:00–12:00 Apr 28 09:00–14:00 Apr 29 08:00–14:00
May
May 1 18:00–21:00 May 2 16:00–21:00 May 3 15:00–21:00 May 4 15:00–20:00 May 5 08:00–11:00 May 7 09:00–14:00, 18:00–20:00 May 8 14:00–21:00 May 13 13:00–15:00 May 14 09:00–15:00, 17:00–19:00 May 15 09:00–16:00, 18:00–19:00 May 16 08:00–10:00, 12:00–15:00, 18:00–19:00 May 17 15:00–22:00 May 18 12:00–14:00, 17:00–18:00 May 19 09:00–11:00 May 20 11:00–14:00 May 21 11:00–13:00, 20:00–24:00 May 22 10:00–12:00, 17:00–18:00 May 23 10:00–16:00, 19:00–23:00 May 24 17:00–22:00 May 25 20:00–23:00 May 26 11:00–14:00, 17:00–20:00 May 27 11:00–13:00, 19:00–21:00 May 28 09:00–14:00 May 30 09:00–15:00
June
Jun 1 13:00–17:00 Jun 3 13:00–19:00 Jun 4 09:00–13:00, 17:00–22:00 Jun 5 09:00–13:00, 19:00–23:00 Jun 6 19:00–22:00 Jun 8 17:00–23:00 Jun 9 10:00–12:00, 18:00–21:00 Jun 12 14:00–18:00, 21:00–24:00 Jun 13 18:00–24:00 Jun 14 00:00–01:00, 13:00–17:00, 20:00–24:00 Jun 15 00:00–04:00 Jun 16 06:00–09:00, 19:00–24:00 Jun 17 10:00–12:00, 17:00–24:00 Jun 18 00:00–01:00, 13:00–16:00, 19:00–24:00 Jun 19 00:00–01:00, 12:00–14:00, 19:00–24:00 Jun 20 00:00–02:00 Jun 22 15:00–17:00 Jun 23 10:00–13:00, 15:00–17:00, 20:00–24:00 Jun 24 00:00–01:00, 11:00–13:00, 20:00–24:00 Jun 25 00:00–01:00, 07:00–08:00, 15:00–17:00, 21:00–24:00 Jun 26 00:00–02:00, 21:00–24:00 Jun 27 00:00–02:00, 15:00–16:00, 22:00–24:00 Jun 28 00:00–03:00, 17:00–19:00, 22:00–24:00 Jun 29 00:00–04:00, 13:00–15:00
July
Jul 1 21:00–24:00 Jul 2 00:00–02:00, 13:00–16:00, 21:00–24:00 Jul 3 00:00–03:00, 15:00–16:00 Jul 5 21:00–23:00 Jul 6 00:00–01:00, 14:00–22:00 Jul 7 19:00–21:00 Jul 13 17:00–24:00 Jul 14 00:00–01:00, 13:00–21:00, 23:00–24:00 Jul 15 13:00–16:00, 19:00–20:00, 22:00–23:00 Jul 16 17:00–24:00 Jul 17 00:00–02:00 Jul 18 19:00–24:00 Jul 19 00:00–04:00, 20:00–24:00 Jul 20 00:00–04:00, 12:00–14:00, 16:00–19:00, 21:00–24:00 Jul 21 00:00–03:00, 17:00–24:00 Jul 22 00:00–04:00, 23:00–24:00 Jul 23 00:00–02:00 Jul 24 02:00–05:00 Jul 25 04:00–07:00, 19:00–23:00 Jul 26 06:00–08:00, 20:00–24:00 Jul 27 00:00–03:00 Jul 28 02:00–07:00, 18:00–20:00 Jul 29 08:00–10:00 Jul 30 03:00–08:00 Jul 31 02:00–08:00, 14:00–17:00
August
Aug 1 02:00–08:00, 11:00–13:00, 15:00–17:00 Aug 2 03:00–08:00, 15:00–18:00 Aug 3 04:00–09:00, 15:00–18:00 Aug 4 06:00–09:00, 15:00–16:00 Aug 5 11:00–14:00 Aug 6 06:00–09:00, 12:00–13:00 Aug 9 15:00–17:00 Aug 10 15:00–21:00 Aug 11 15:00–18:00 Aug 12 09:00–13:00 Aug 13 15:00–19:00 Aug 14 06:00–08:00 Aug 15 16:00–19:00 Aug 16 05:00–09:00, 14:00–20:00 Aug 17 09:00–12:00, 17:00–21:00 Aug 18 10:00–13:00, 15:00–18:00 Aug 19 04:00–08:00, 16:00–19:00 Aug 20 05:00–09:00, 13:00–16:00 Aug 21 18:00–20:00 Aug 22 04:00–07:00 Aug 25 18:00–20:00 Aug 26 06:00–07:00, 10:00–15:00 Aug 27 05:00–08:00, 10:00–17:00 Aug 28 05:00–07:00, 12:00–14:00, 18:00–22:00 Aug 29 00:00–01:00, 18:00–24:00 Aug 30 19:00–23:00 Aug 31 00:00–01:00, 20:00–24:00
September
Sep 1 00:00–05:00, 20:00–24:00 Sep 2 00:00–03:00, 12:00–14:00, 19:00–24:00 Sep 3 00:00–02:00, 15:00–17:00, 20:00–24:00 Sep 4 00:00–02:00 Sep 7 02:00–05:00, 16:00–18:00 Sep 8 21:00–24:00 Sep 9 00:00–02:00, 21:00–24:00 Sep 10 00:00–02:00 Sep 12 06:00–07:00, 14:00–16:00 Sep 13 13:00–15:00 Sep 17 11:00–14:00, 22:00–23:00 Sep 18 10:00–12:00, 16:00–20:00 Sep 19 09:00–15:00 Sep 20 18:00–24:00 Sep 21 00:00–02:00, 17:00–22:00 Sep 22 13:00–15:00 Sep 23 10:00–12:00 Sep 24 10:00–16:00 Sep 25 05:00–08:00, 11:00–17:00 Sep 26 05:00–06:00 Sep 27 14:00–16:00 Sep 30 09:00–11:00, 14:00–15:00
October
Oct 1 05:00–07:00, 11:00–16:00 Oct 2 12:00–15:00, 19:00–21:00 Oct 3 10:00–11:00, 19:00–21:00 Oct 4 08:00–10:00, 18:00–21:00 Oct 5 19:00–22:00 Oct 6 06:00–08:00, 10:00–14:00 Oct 8 06:00–08:00 Oct 9 09:00–11:00, 19:00–21:00 Oct 10 09:00–12:00, 20:00–23:00 Oct 11 06:00–08:00, 19:00–24:00 Oct 12 10:00–11:00, 16:00–20:00 Oct 13 09:00–16:00 Oct 16 15:00–18:00 Oct 17 08:00–11:00, 17:00–24:00 Oct 18 17:00–22:00 Oct 19 06:00–09:00 Oct 20 04:00–08:00, 10:00–12:00 Oct 21 05:00–08:00, 10:00–12:00, 17:00–21:00 Oct 22 05:00–08:00, 12:00–15:00, 19:00–21:00 Oct 23 19:00–23:00 Oct 24 20:00–24:00 Oct 25 00:00–01:00 Oct 27 19:00–23:00 Oct 28 00:00–02:00, 21:00–24:00 Oct 29 00:00–04:00, 20:00–24:00 Oct 30 00:00–02:00, 21:00–24:00 Oct 31 00:00–02:00
November
Nov 2 19:00–21:00 Nov 4 18:00–24:00 Nov 5 00:00–01:00 Nov 6 19:00–24:00 Nov 7 00:00–02:00, 20:00–24:00 Nov 8 00:00–03:00, 21:00–24:00 Nov 9 00:00–03:00, 20:00–21:00 Nov 10 01:00–03:00 Nov 12 23:00–24:00 Nov 13 00:00–03:00, 20:00–24:00 Nov 14 00:00–01:00, 21:00–24:00 Nov 15 02:00–04:00 Nov 16 22:00–24:00 Nov 17 00:00–01:00, 21:00–24:00 Nov 18 00:00–03:00, 19:00–21:00 Nov 19 04:00–07:00, 18:00–20:00 Nov 20 00:00–06:00, 22:00–24:00 Nov 22 00:00–02:00, 22:00–24:00 Nov 23 02:00–04:00 Nov 24 05:00–06:00, 17:00–18:00 Nov 25 00:00–02:00 Nov 26 05:00–08:00, 18:00–20:00 Nov 27 04:00–08:00 Nov 28 09:00–15:00, 23:00–24:00 Nov 29 00:00–03:00, 23:00–24:00 Nov 30 00:00–03:00
December
Dec 1 04:00–07:00 Dec 4 04:00–07:00 Dec 5 05:00–08:00 Dec 6 04:00–08:00, 22:00–24:00 Dec 7 07:00–09:00, 15:00–18:00 Dec 10 05:00–09:00, 18:00–20:00 Dec 11 05:00–09:00, 12:00–13:00, 16:00–18:00 Dec 12 05:00–07:00, 15:00–16:00 Dec 13 07:00–08:00, 18:00–22:00 Dec 14 07:00–09:00, 17:00–18:00 Dec 15 07:00–09:00, 17:00–20:00 Dec 16 07:00–08:00 Dec 23 18:00–21:00 Dec 24 06:00–09:00, 19:00–23:00 Dec 25 19:00–22:00