Masik Shivratri me ratri ka mahatva rahta hai, isilye jis raat me jo tithi ho us hisaab se masik shivratri aati hai.Jaise ki 20 March ko Masik Shivratri hai, balki 20 March ko Trayodashi hai,Trayodasi Start Time : 19/03/12 04:51 PMEnd Time : 20/03/12 05:32 PMChaturdasi Start Time : 20/03/12 05:32 PMEnd Time : 21/03/12 06:37 PMLekin chturdashi shaam 5.32 se shuru hai, matlab 20th March ki raat chaturdashi hai, isilye ye Masik Shivratri hai.General tithi, suryoday ke samay ki tithi se bola jata hai. Jo tithi suryodaya ke samay hai, wahi us din ki tithi maani jaati hai.HariOM