The buyout period starts 48 hours after the Stanley Cup Final is complete. So lets say it begins on June 18th or late June 17th.

TBA Deadline for first club-elected salary arbitration (later of June 15 or 48 hours after the conclusion of the Stanley Cup Final, 5:00pm ET)

NHL Awards Show on June 24th at the MGM Grand in Las Vegas.

NHL Draft is on June 26-27 at the BB&T Center in Sunrise Florida.

UFA signing period begins at 12:00pm ET on July 1st.

July 5th Deadline for player-elected salary arbitration notification (5:00pm ET)

July 6th Deadline for club-elected salary arbitration notification (5:00pm ET)

July 20-August 4 Salary arbitration hearings held.

August 6th Deadline for salary arbitration decisions to be rendered