Most often in August, 27 days.
Highest follower count seen that year: 7,383.
January
Jan 3 13:00–23:00 Jan 4 12:00–22:00 Jan 5 13:00–15:00, 18:00–24:00 Jan 6 00:00–04:00 Jan 9 14:00–24:00 Jan 10 00:00–01:00, 17:00–24:00 Jan 11 00:00–02:00, 17:00–19:00, 22:00–24:00 Jan 12 00:00–02:00, 16:00–24:00 Jan 13 14:00–17:00, 19:00–24:00 Jan 14 00:00–02:00, 16:00–19:00, 23:00–24:00 Jan 15 16:00–20:00, 22:00–24:00 Jan 16 00:00–01:00 Jan 18 17:00–22:00 Jan 20 17:00–20:00, 22:00–24:00 Jan 22 17:00–21:00 Jan 27 18:00–23:00 Jan 28 00:00–02:00, 11:00–13:00, 15:00–19:00 Jan 29 16:00–19:00
February
Feb 3 16:00–22:00 Feb 4 00:00–03:00, 18:00–23:00 Feb 5 17:00–21:00 Feb 6 13:00–24:00 Feb 7 17:00–23:00 Feb 8 00:00–03:00, 17:00–21:00 Feb 9 15:00–24:00 Feb 10 00:00–03:00, 17:00–19:00, 21:00–24:00 Feb 11 03:00–05:00, 16:00–19:00 Feb 12 17:00–24:00 Feb 13 00:00–04:00, 17:00–24:00 Feb 14 00:00–05:00, 17:00–22:00 Feb 15 01:00–05:00, 17:00–24:00 Feb 16 00:00–05:00 Feb 17 04:00–09:00, 14:00–17:00 Feb 18 01:00–06:00 Feb 20 22:00–23:00 Feb 21 00:00–03:00 Feb 23 18:00–19:00 Feb 24 01:00–04:00, 12:00–13:00 Feb 27 04:00–10:00, 13:00–19:00 Feb 28 00:00–06:00, 08:00–10:00, 15:00–20:00
March
Mar 1 07:00–20:00 Mar 2 03:00–07:00, 12:00–20:00 Mar 3 02:00–13:00, 16:00–20:00 Mar 4 06:00–07:00, 10:00–20:00 Mar 5 07:00–09:00, 12:00–19:00 Mar 6 02:00–06:00, 14:00–24:00 Mar 7 00:00–01:00, 12:00–24:00 Mar 8 10:00–22:00 Mar 9 11:00–13:00, 16:00–24:00 Mar 10 00:00–02:00, 13:00–14:00, 16:00–22:00 Mar 11 12:00–17:00, 19:00–23:00 Mar 12 12:00–24:00 Mar 13 03:00–04:00, 16:00–17:00 Mar 14 16:00–22:00 Mar 15 17:00–22:00 Mar 17 18:00–23:00 Mar 18 20:00–21:00 Mar 28 18:00–21:00 Mar 29 15:00–22:00 Mar 30 17:00–24:00 Mar 31 00:00–02:00, 18:00–21:00
April
Apr 1 10:00–13:00, 16:00–24:00 Apr 2 00:00–01:00, 17:00–24:00 Apr 3 00:00–02:00 Apr 4 16:00–24:00 Apr 5 00:00–02:00, 17:00–20:00 Apr 6 01:00–02:00 Apr 7 18:00–24:00 Apr 8 00:00–05:00, 18:00–24:00 Apr 9 03:00–05:00, 21:00–24:00 Apr 10 00:00–06:00 Apr 11 16:00–19:00, 21:00–24:00 Apr 12 00:00–04:00, 19:00–22:00 Apr 13 01:00–07:00, 14:00–17:00, 22:00–24:00 Apr 14 00:00–05:00, 17:00–24:00 Apr 15 00:00–01:00, 04:00–05:00, 19:00–24:00 Apr 16 05:00–08:00, 20:00–24:00 Apr 17 00:00–04:00, 16:00–18:00, 21:00–24:00 Apr 18 02:00–06:00, 19:00–20:00, 22:00–24:00 Apr 19 00:00–04:00 Apr 25 03:00–15:00, 17:00–18:00 Apr 26 15:00–21:00 Apr 27 01:00–03:00, 15:00–16:00, 23:00–24:00 Apr 28 00:00–02:00, 05:00–06:00, 19:00–24:00 Apr 30 06:00–07:00, 15:00–18:00
May
May 1 02:00–06:00 May 16 19:00–20:00 May 17 16:00–21:00 May 20 17:00–20:00 May 21 14:00–16:00, 18:00–24:00 May 22 00:00–02:00, 18:00–19:00 May 23 17:00–23:00 May 26 17:00–24:00 May 27 11:00–20:00, 22:00–24:00 May 28 00:00–01:00, 12:00–23:00 May 29 16:00–20:00, 23:00–24:00 May 30 01:00–02:00, 17:00–20:00
June
Jun 1 17:00–19:00, 21:00–24:00 Jun 2 15:00–24:00 Jun 3 00:00–01:00, 12:00–24:00 Jun 4 00:00–03:00, 14:00–23:00 Jun 5 01:00–02:00 Jun 6 16:00–21:00, 23:00–24:00 Jun 7 00:00–04:00, 16:00–22:00 Jun 8 13:00–19:00, 22:00–24:00 Jun 9 00:00–01:00, 16:00–18:00, 20:00–22:00 Jun 10 12:00–24:00 Jun 11 00:00–02:00, 18:00–24:00 Jun 12 16:00–24:00 Jun 13 00:00–02:00, 16:00–24:00 Jun 14 00:00–01:00, 18:00–22:00 Jun 15 03:00–04:00 Jun 21 16:00–24:00 Jun 22 00:00–01:00, 17:00–22:00 Jun 23 00:00–03:00 Jun 24 17:00–20:00 Jun 25 00:00–04:00, 18:00–20:00 Jun 26 00:00–05:00 Jun 27 00:00–02:00, 04:00–05:00 Jun 28 20:00–21:00 Jun 29 02:00–08:00, 11:00–16:00 Jun 30 20:00–24:00
July
Jul 1 00:00–06:00, 20:00–23:00 Jul 2 00:00–04:00, 21:00–24:00 Jul 3 00:00–04:00 Jul 4 01:00–06:00, 09:00–10:00, 12:00–15:00 Jul 5 02:00–08:00, 12:00–14:00 Jul 6 03:00–04:00, 14:00–18:00 Jul 7 02:00–16:00 Jul 8 03:00–17:00 Jul 9 01:00–18:00 Jul 10 02:00–16:00 Jul 11 03:00–14:00 Jul 12 03:00–17:00 Jul 13 03:00–13:00, 15:00–20:00 Jul 14 04:00–07:00, 12:00–16:00 Jul 20 13:00–17:00 Jul 21 08:00–15:00, 17:00–18:00 Jul 22 07:00–10:00 Jul 31 11:00–15:00
August
Aug 1 16:00–24:00 Aug 2 01:00–02:00, 14:00–17:00 Aug 3 15:00–23:00 Aug 4 00:00–05:00, 17:00–22:00 Aug 5 13:00–23:00 Aug 7 01:00–08:00, 21:00–24:00 Aug 8 00:00–08:00 Aug 9 00:00–14:00 Aug 10 02:00–08:00 Aug 14 04:00–17:00 Aug 15 04:00–11:00 Aug 16 03:00–07:00, 10:00–14:00 Aug 17 04:00–06:00 Aug 18 14:00–20:00 Aug 19 04:00–16:00 Aug 20 05:00–18:00 Aug 21 07:00–18:00 Aug 22 08:00–17:00 Aug 23 06:00–16:00 Aug 24 03:00–16:00 Aug 25 14:00–16:00 Aug 26 07:00–08:00, 10:00–16:00 Aug 27 07:00–13:00, 16:00–18:00 Aug 28 07:00–10:00, 18:00–24:00 Aug 29 00:00–04:00, 16:00–18:00 Aug 30 11:00–17:00 Aug 31 08:00–14:00
September
Sep 3 09:00–20:00 Sep 4 08:00–16:00 Sep 6 11:00–16:00 Sep 10 03:00–04:00, 11:00–24:00 Sep 11 00:00–03:00 Sep 12 02:00–07:00, 10:00–17:00 Sep 13 08:00–16:00, 18:00–20:00 Sep 14 06:00–14:00, 18:00–21:00 Sep 15 12:00–24:00 Sep 16 00:00–01:00, 18:00–24:00 Sep 17 16:00–23:00 Sep 20 22:00–24:00 Sep 21 00:00–03:00, 11:00–15:00, 22:00–24:00 Sep 22 00:00–03:00, 10:00–24:00 Sep 23 00:00–01:00, 23:00–24:00 Sep 24 00:00–04:00, 15:00–21:00 Sep 25 08:00–09:00, 16:00–24:00 Sep 26 00:00–05:00, 17:00–24:00 Sep 27 00:00–04:00, 17:00–24:00 Sep 28 00:00–03:00, 16:00–24:00 Sep 29 00:00–03:00, 17:00–22:00 Sep 30 00:00–04:00, 17:00–24:00
October
Oct 1 00:00–04:00, 17:00–24:00 Oct 2 00:00–04:00, 18:00–24:00 Oct 3 00:00–04:00, 18:00–24:00 Oct 4 00:00–02:00, 18:00–24:00 Oct 5 00:00–04:00, 18:00–24:00 Oct 6 00:00–03:00 Oct 10 11:00–15:00, 20:00–24:00 Oct 11 00:00–01:00, 21:00–24:00 Oct 12 00:00–01:00 Oct 14 17:00–19:00 Oct 15 00:00–06:00
November
Nov 5 18:00–23:00