get time 24 hours ago , how ?

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This is current time :

datetime dt=TimeCurrent();

How do I get time, but exactly 24 hours ago ??

datetime dtprev =TimeCurrent()- ?????;

[Alexander]

icm63 wrote >>

This is current time :

datetime dt=TimeCurrent();

How do I get time, but exactly 24 hours ago ??

datetime dtprev =TimeCurrent()- ?????;

datetime dtprev =TimeCurrent()- 60*60*24;

[[Deleted]]

Roger wrote >>

datetime dtprev =TimeCurrent()- 60*60*24;

Thanks