end
else
# the max of the last update time or the ends_at time is when this block finished
# either because the user viewed the block (updated_at) or it expired or was
# revoked (ends_at)
last_time = [block.ends_at, block.updated_at].max
end
else
# the max of the last update time or the ends_at time is when this block finished
# either because the user viewed the block (updated_at) or it expired or was
# revoked (ends_at)
last_time = [block.ends_at, block.updated_at].max