You could do that easily by yourself...
o_O I'll throw something up, just a moment.
EDIT:
import time
def yday(time_zone): #HOURS FROM GMT!!
new = time.gmtime(time.time()+(time_zone-24)*3600)
mon = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"]
return "%s %s %s"%(new[2],mon[int(new[1])-1],new[0])
today = time.strftime("%d %B %Y")
yesterday = yday(-5)
print today, yesterday
Then just change -5 to how many hours you are from GMT.