Most often in March, 31 days.
Highest follower count seen that year: 8,491.
January
Jan 1 01:00–10:00, 16:00–17:00, 19:00–20:00, 22:00–24:00 Jan 2 00:00–09:00, 17:00–20:00, 23:00–24:00 Jan 3 00:00–01:00, 04:00–07:00, 17:00–23:00 Jan 4 03:00–09:00, 22:00–23:00 Jan 5 03:00–06:00, 17:00–18:00, 21:00–24:00 Jan 6 04:00–08:00, 22:00–23:00 Jan 7 21:00–24:00 Jan 8 00:00–01:00, 03:00–05:00, 17:00–24:00 Jan 9 04:00–08:00, 17:00–19:00, 23:00–24:00 Jan 10 03:00–07:00, 16:00–17:00, 21:00–22:00 Jan 11 02:00–07:00, 10:00–12:00, 14:00–19:00 Jan 12 00:00–08:00, 15:00–16:00, 22:00–24:00 Jan 13 01:00–07:00, 17:00–24:00 Jan 14 01:00–09:00 Jan 15 03:00–07:00, 17:00–20:00 Jan 16 04:00–06:00, 17:00–18:00, 22:00–24:00 Jan 17 03:00–08:00 Jan 18 03:00–06:00, 20:00–21:00 Jan 19 17:00–18:00 Jan 20 03:00–07:00, 17:00–20:00 Jan 21 03:00–09:00, 17:00–19:00, 21:00–24:00 Jan 22 03:00–09:00, 15:00–18:00, 20:00–23:00 Jan 23 03:00–07:00, 16:00–19:00, 21:00–24:00 Jan 24 05:00–08:00, 10:00–11:00, 18:00–22:00 Jan 25 04:00–06:00, 17:00–18:00 Jan 26 03:00–09:00, 11:00–13:00, 16:00–17:00 Jan 27 03:00–06:00, 08:00–09:00, 15:00–17:00 Jan 28 02:00–03:00, 07:00–09:00, 16:00–24:00 Jan 29 00:00–01:00, 03:00–07:00, 16:00–18:00, 21:00–23:00 Jan 30 05:00–06:00, 19:00–21:00, 23:00–24:00 Jan 31 15:00–18:00, 21:00–24:00
February
Feb 1 04:00–08:00, 12:00–13:00 Feb 2 09:00–11:00, 19:00–23:00 Feb 3 03:00–06:00, 15:00–17:00, 20:00–24:00 Feb 4 18:00–19:00 Feb 5 03:00–06:00, 15:00–20:00 Feb 6 03:00–05:00, 10:00–22:00 Feb 7 18:00–20:00 Feb 8 17:00–20:00 Feb 9 03:00–07:00, 14:00–22:00 Feb 10 03:00–04:00, 13:00–22:00 Feb 11 03:00–05:00, 13:00–14:00, 17:00–22:00 Feb 12 03:00–05:00, 13:00–22:00 Feb 13 08:00–09:00, 19:00–24:00 Feb 14 02:00–04:00, 06:00–08:00, 16:00–22:00 Feb 15 04:00–06:00, 16:00–19:00 Feb 16 13:00–15:00, 17:00–23:00 Feb 17 04:00–08:00, 15:00–22:00 Feb 18 03:00–05:00, 13:00–23:00 Feb 19 13:00–24:00 Feb 20 03:00–05:00, 08:00–09:00, 13:00–17:00, 20:00–22:00 Feb 21 16:00–18:00, 23:00–24:00 Feb 22 00:00–01:00, 04:00–07:00, 15:00–17:00 Feb 23 04:00–05:00, 14:00–24:00 Feb 24 04:00–06:00, 13:00–19:00, 21:00–24:00 Feb 25 03:00–05:00, 08:00–11:00, 13:00–19:00 Feb 26 03:00–08:00, 14:00–22:00 Feb 27 03:00–10:00, 13:00–20:00 Feb 28 04:00–06:00, 09:00–11:00, 17:00–18:00, 21:00–22:00
March
Mar 1 08:00–11:00, 15:00–24:00 Mar 2 02:00–05:00, 09:00–11:00, 13:00–19:00, 21:00–22:00 Mar 3 04:00–05:00, 07:00–10:00, 14:00–17:00, 19:00–20:00 Mar 4 02:00–05:00, 08:00–09:00, 13:00–16:00, 21:00–22:00 Mar 5 02:00–05:00, 09:00–10:00, 13:00–14:00, 16:00–20:00 Mar 6 02:00–04:00, 16:00–19:00 Mar 7 00:00–05:00, 16:00–17:00 Mar 8 05:00–07:00, 12:00–19:00 Mar 9 13:00–14:00, 16:00–23:00 Mar 10 03:00–05:00, 07:00–09:00, 13:00–22:00 Mar 11 02:00–05:00, 10:00–11:00, 13:00–22:00 Mar 12 03:00–09:00, 13:00–18:00, 21:00–22:00 Mar 13 09:00–10:00, 17:00–20:00, 22:00–24:00 Mar 14 01:00–09:00, 16:00–18:00, 20:00–22:00 Mar 15 05:00–11:00, 16:00–18:00 Mar 16 01:00–05:00, 10:00–11:00, 14:00–15:00, 18:00–22:00 Mar 17 02:00–04:00, 10:00–11:00, 13:00–22:00 Mar 18 04:00–10:00, 13:00–18:00, 23:00–24:00 Mar 19 04:00–09:00, 15:00–19:00, 21:00–22:00 Mar 20 04:00–05:00, 08:00–11:00, 15:00–21:00 Mar 21 03:00–07:00, 14:00–16:00 Mar 22 05:00–08:00, 12:00–13:00, 15:00–16:00, 19:00–24:00 Mar 23 03:00–08:00, 12:00–14:00 Mar 24 02:00–05:00, 10:00–11:00, 14:00–17:00, 22:00–23:00 Mar 25 03:00–09:00, 13:00–15:00, 17:00–22:00 Mar 26 04:00–07:00, 13:00–18:00 Mar 27 00:00–04:00, 06:00–11:00, 13:00–14:00, 18:00–20:00 Mar 28 00:00–05:00, 07:00–12:00, 17:00–18:00 Mar 29 04:00–06:00, 10:00–15:00, 23:00–24:00 Mar 30 01:00–06:00, 20:00–22:00 Mar 31 02:00–04:00, 10:00–12:00, 16:00–22:00
April
Apr 1 08:00–09:00, 17:00–18:00 Apr 2 03:00–05:00, 09:00–11:00, 14:00–18:00 Apr 3 02:00–04:00, 10:00–11:00, 16:00–17:00 Apr 4 03:00–05:00, 09:00–13:00, 21:00–22:00 Apr 5 04:00–05:00, 10:00–11:00, 15:00–18:00 Apr 6 02:00–05:00, 07:00–09:00, 13:00–20:00 Apr 8 04:00–05:00, 07:00–08:00, 14:00–16:00 Apr 9 03:00–04:00, 06:00–08:00, 14:00–17:00 Apr 10 06:00–07:00, 16:00–19:00 Apr 11 05:00–06:00, 09:00–10:00, 16:00–19:00 Apr 12 08:00–12:00, 16:00–17:00, 20:00–23:00 Apr 13 03:00–06:00, 13:00–18:00 Apr 14 14:00–17:00, 20:00–24:00 Apr 15 02:00–04:00, 09:00–11:00, 13:00–24:00 Apr 16 04:00–06:00, 14:00–20:00 Apr 17 19:00–21:00, 23:00–24:00 Apr 18 00:00–02:00, 05:00–07:00, 15:00–16:00, 18:00–22:00 Apr 19 10:00–11:00, 13:00–14:00 Apr 20 02:00–07:00, 14:00–22:00 Apr 21 02:00–03:00, 06:00–10:00, 15:00–16:00, 18:00–21:00 Apr 22 09:00–10:00, 14:00–21:00, 23:00–24:00 Apr 23 00:00–01:00, 03:00–05:00, 10:00–11:00, 13:00–15:00, 18:00–24:00 Apr 24 06:00–09:00, 14:00–24:00 Apr 25 06:00–10:00, 16:00–20:00 Apr 26 10:00–11:00 Apr 27 04:00–06:00, 08:00–10:00, 14:00–21:00 Apr 28 03:00–05:00, 07:00–11:00, 15:00–19:00 Apr 29 03:00–05:00, 10:00–11:00, 18:00–22:00 Apr 30 03:00–04:00, 09:00–10:00, 19:00–22:00
May
May 1 01:00–02:00, 06:00–09:00, 15:00–16:00, 20:00–22:00 May 2 07:00–10:00 May 3 02:00–06:00, 10:00–12:00, 16:00–18:00, 23:00–24:00 May 4 01:00–02:00, 16:00–22:00 May 5 09:00–11:00, 17:00–22:00 May 6 08:00–10:00, 15:00–18:00, 20:00–22:00 May 7 04:00–05:00, 09:00–11:00, 13:00–20:00 May 8 07:00–09:00, 14:00–15:00, 18:00–24:00 May 9 21:00–24:00 May 10 04:00–06:00, 08:00–12:00, 15:00–16:00, 21:00–22:00 May 11 08:00–09:00, 17:00–21:00 May 12 04:00–07:00, 16:00–22:00 May 13 08:00–09:00, 18:00–20:00 May 14 04:00–06:00, 15:00–16:00, 19:00–20:00 May 15 03:00–06:00, 14:00–17:00, 20:00–22:00 May 16 01:00–02:00, 04:00–08:00, 10:00–11:00, 16:00–18:00, 22:00–23:00 May 17 02:00–03:00, 09:00–11:00, 20:00–22:00 May 18 00:00–10:00, 22:00–23:00 May 19 17:00–22:00 May 20 07:00–11:00, 14:00–22:00 May 21 03:00–05:00, 16:00–20:00 May 22 04:00–05:00, 10:00–11:00, 13:00–22:00 May 23 03:00–05:00, 08:00–09:00, 16:00–17:00 May 24 19:00–20:00 May 25 05:00–06:00, 10:00–11:00, 15:00–19:00, 21:00–22:00 May 26 03:00–06:00, 16:00–19:00, 21:00–23:00 May 27 02:00–04:00, 14:00–23:00 May 28 00:00–01:00, 04:00–05:00, 08:00–10:00, 13:00–16:00, 18:00–22:00 May 29 02:00–07:00, 14:00–19:00 May 30 03:00–07:00, 15:00–23:00 May 31 15:00–17:00, 21:00–22:00
June
Jun 1 01:00–05:00, 07:00–08:00, 16:00–19:00 Jun 2 08:00–09:00, 13:00–24:00 Jun 3 06:00–07:00, 20:00–22:00 Jun 4 07:00–08:00, 17:00–22:00 Jun 5 04:00–06:00, 16:00–21:00 Jun 6 04:00–05:00, 08:00–10:00, 12:00–13:00, 21:00–24:00 Jun 7 04:00–07:00, 14:00–15:00, 22:00–23:00 Jun 8 03:00–04:00, 14:00–17:00, 23:00–24:00 Jun 9 03:00–04:00, 16:00–21:00 Jun 10 03:00–06:00, 17:00–18:00 Jun 11 08:00–09:00, 19:00–23:00 Jun 12 00:00–04:00, 15:00–18:00, 20:00–22:00 Jun 13 11:00–14:00, 18:00–19:00 Jun 15 15:00–21:00 Jun 16 05:00–07:00, 09:00–12:00 Jun 17 04:00–07:00, 10:00–14:00 Jun 22 16:00–21:00 Jun 23 17:00–21:00 Jun 24 03:00–05:00, 07:00–09:00, 18:00–20:00, 23:00–24:00 Jun 25 06:00–08:00, 14:00–15:00, 17:00–18:00, 20:00–24:00 Jun 26 08:00–09:00, 13:00–14:00, 18:00–20:00 Jun 27 03:00–06:00, 16:00–18:00 Jun 28 10:00–11:00, 20:00–24:00 Jun 29 09:00–10:00, 17:00–24:00 Jun 30 03:00–05:00, 22:00–23:00
July
Jul 1 03:00–05:00, 13:00–14:00, 20:00–24:00 Jul 2 04:00–06:00, 11:00–12:00, 17:00–18:00 Jul 3 04:00–05:00, 07:00–08:00 Jul 4 04:00–06:00, 11:00–13:00 Jul 5 03:00–07:00, 12:00–13:00, 22:00–24:00 Jul 6 03:00–05:00, 15:00–16:00, 18:00–22:00 Jul 7 05:00–06:00 Jul 8 02:00–06:00, 17:00–20:00 Jul 9 04:00–06:00, 11:00–12:00, 15:00–16:00, 18:00–19:00, 21:00–24:00 Jul 10 03:00–07:00, 17:00–22:00 Jul 11 11:00–12:00, 23:00–24:00 Jul 12 01:00–06:00, 10:00–14:00 Jul 13 03:00–04:00 Jul 14 04:00–05:00, 10:00–11:00, 15:00–22:00 Jul 15 00:00–01:00, 21:00–24:00 Jul 16 04:00–08:00, 14:00–19:00, 21:00–23:00 Jul 17 03:00–08:00, 10:00–11:00, 15:00–16:00, 20:00–23:00 Jul 18 04:00–08:00, 16:00–17:00, 19:00–21:00 Jul 19 02:00–10:00, 17:00–19:00 Jul 20 04:00–07:00, 22:00–24:00 Jul 21 00:00–01:00, 16:00–22:00 Jul 22 00:00–01:00, 03:00–05:00, 11:00–12:00, 14:00–23:00 Jul 23 17:00–24:00 Jul 24 05:00–06:00, 09:00–12:00, 14:00–15:00, 19:00–20:00 Jul 25 01:00–02:00, 17:00–23:00 Jul 27 07:00–11:00, 14:00–15:00, 19:00–20:00