Dater ndi mtundu wa sitampu yokhala ndi deti, nthawi zambiri imakhala ngati deti + zolemba. Dater akhoza kusintha nthawi ya tsiku mwakufuna kwake. Pakalipano, amagwiritsidwa ntchito kwambiri m'mabanki, masukulu, zipatala ndi madipatimenti a boma kumene masiku ndi malemba akuyenera kulembedwa kawirikawiri.

Sitampu yamasiku osinthika iyenera kugwiritsidwa ntchito limodzi ndi tebulo losindikizira, ndipo mawonekedwe abwino atha kupezeka mwa kumata inki mofatsa. Pogwiritsa ntchito bulaketi yachitsulo chosapanga dzimbiri, chimangocho chimakhala chokhazikika, ndipo masitampu amapangidwanso ndi zinthu za alloy, zomwe zimapangitsa kuti sitampu yonse ikhale yolimba komanso yolimba. Tsiku la sitampu ndi chosinthika kwa zaka 12, ndi pamwamba kusindikiza akhoza makonda kapena kusinthidwa malinga ndi zofuna. Tsiku la chisindikizo limasinthidwa kwa zaka 12, ndipo malo osindikizira amatha kusinthidwa kapena kusinthidwa malinga ndi zofunikira. Titha kusinthanso makonzedwe a DD-MM-YY kapena MM-DD-YY ndi zina zosiyanasiyana chaka, mwezi ndi tsiku, kapena zolemba m'zilankhulo zosiyanasiyana malinga ndi zofuna za makasitomala.

The dater wa LIZAO mtundu ali ndi makhalidwe kuti wachibale kutalika kwa deti lenileni ndi sitampu tebulo akhoza kusinthidwa mosalekeza, amene timapitiriza chilengedwe cha sta, [ pamwamba, ndi kupanga tsiku lenileni ndi sitampu chikopa pamwamba molondola calibrated, amene amakwaniritsa zofunikira za kumveka bwino kwa sitampu kumlingo waukulu kwambiri.