2025 MOUNTAIN Day/Mo/Date/Time         UTC/Z Day/Mo/Date/Time
243  Wed Jan 15 6:30-8:30P MST         Thu Jan 16 0130-0330Z
160M Wed Jan 22 6:30-8:30P MST         Thu Jan 23 0130-0330Z
244  Tue Feb 11 6:30-8:30P MST         Wed Feb 12 0130-0330Z
245  Wed Mar 19 6:30-8:30P MDT         Thu Mar 20 0030-0230Z
246  Tue Apr 08 6:30-8:30P MDT         Wed Apr 09 0030-0230Z
247  Wed May 14 6:30-8:30P MDT         Thu May 15 0030-0230Z
248  Tue Jun 10 6:30-8:30P MDT         Wed Jun 11 0030-0230Z
mW   Tue Jun 17 6:30-8:30P MDT         Wed Jun 18 0030-0230Z
249  Wed Jul 16 6:30-8:30P MDT         Thu Jul 17 0030-0230Z
250  Tue Aug 12 6:30-8:30P MDT         Wed Aug 13 0030-0230Z
251  Wed Sep 17 6:30-8:30P MDT         Thu Sep 18 0030-0230Z
252  Tue Oct 07 6:30-8:30P MDT         Wed Oct 08 0030-0230Z
253  Wed Nov 19 6:30-8:30P MST         Thu Nov 20 0130-0330Z
254  Tue Dec 09 6:30-8:30P MST         Wed Dec 10 0130-0330Z
mW   Tue Dec 16 6:30-8:30P MST         Wed Dec 17 0130-0330Z

2026 MOUNTAIN Day/Mo/Date/Time         UTC/Z Day/Mo/Date/Time
255  Wed Jan 14 6:30-8:30P MST         Thu Jan 15 0130-0330Z
160M Wed Jan 21 6:30-8:30P MST         Thu Jan 22 0130-0330Z
256  Tue Feb 10 6:30-8:30P MST         Wed Feb 11 0130-0330Z
257  Wed Mar 18 6:30-8:30P MDT         Thu Mar 19 0030-0230Z
258  Tue Apr 07 6:30-8:30P MDT         Wed Apr 08 0030-0230Z
259  Wed May 20 6:30-8:30P MDT         Thu May 21 0030-0230Z
260  Tue Jun 09 6:30-8:30P MDT         Wed Jun 10 0030-0230Z
mW   Tue Jun 16 6:30-8:30P MDT         Wed Jun 17 0030-0230Z
261  Wed Jul 15 6:30-8:30P MDT         Thu Jul 16 0030-0230Z
262  Tue Aug 11 6:30-8:30P MDT         Wed Aug 12 0030-0230Z
263  Wed Sep 16 6:30-8:30P MDT         Thu Sep 17 0030-0230Z
264  Tue Oct 13 6:30-8:30P MDT         Wed Oct 14 0030-0230Z
265  Wed Nov 18 6:30-8:30P MST         Thu Nov 19 0130-0330Z
266  Tue Dec 08 6:30-8:30P MST         Wed Dec 09 0130-0330Z
mW   Tue Dec 15 6:30-8:30P MST         Wed Dec 16 0130-0330Z

* Regular Monthly Sprints in Jan, Mar, May, Jul, Sep, Nov are 3rd Thursday UTC time (the 3rd Wednesday in the US)
* Regular Monthly Sprints in Feb, Apr, Jun, Aug, Oct, Dec are 2nd Wednesday UTC time (the 2nd Tuesday in the US)
* mW Sprints are 3rd Wednesdays in June and December UTC time (the 3rd Tuesday in the US)
* 160M Sprint is the 4th Thursday in January UTC time (the 4th Wednesday in the US)

Updated January 6, 2025