[⏰]

#time window #appointment time #specific time #allocated time #time slot #bounded time

⏳<--->⏳

#time duration #time span #time window #hourglass duration #beginning to end

⏰﹝﹞

#time block #appointment slot #scheduled time #time window #booking slot

▶️⏳️⏹️

#time window #duration limit #fixed time #start stop time #time frame #allotted time

🕒–🕓

#time range #time window #schedule slot #time segment #appointment duration

🕒➡️🕔

#time frame #time range #time window #hours

⏰[...]⏳

#time window #time interval #delivery window #maintenance window