Most should probably use the "date" data type.
ATTRIBUTE URL 8 string
ATTRIBUTE Connect_Id 26 integer
-ATTRIBUTE NAS-Startup-Timestamp 59 integer
+ATTRIBUTE NAS-Startup-Timestamp 59 date
ATTRIBUTE Ip-Host-Addr 60 string
ATTRIBUTE Product-ID 255 string
# 77 ?
#ATTRIBUTE Always-On 78 integer
ATTRIBUTE Foreign-Agent-Address 79 ipaddr
-ATTRIBUTE Last-User-Activity-Time 80 integer
+ATTRIBUTE Last-User-Activity-Time 80 date
ATTRIBUTE MN-AAA-Removal-Indication 81 integer
ATTRIBUTE RN-Packet-Data-Inactivity-Timer 82 integer
ATTRIBUTE Forward-PDCH-RC 83 integer
ATTRIBUTE Called-Asserted-Pres-Indicator 209 string
ATTRIBUTE SDP 210 string
ATTRIBUTE Media-Initiator-Flag 211 string
-ATTRIBUTE SDP-Offer-Timestamp 212 string
-ATTRIBUTE SDP-Answer-Timestamp 213 string
+ATTRIBUTE SDP-Offer-Timestamp 212 string # should probably be date?
+ATTRIBUTE SDP-Answer-Timestamp 213 string # should probably be date?
ATTRIBUTE Early-Media-SDP 214 string
ATTRIBUTE Early-Media-Initiator-Flag 215 string
ATTRIBUTE Body-Content-Type 216 string
ATTRIBUTE NAT-IP-Address 32 ipaddr
ATTRIBUTE NAT-Start-Port 33 integer
ATTRIBUTE NAT-End-Port 34 integer
-ATTRIBUTE NAS-Startup-Timestamp 59 integer
+ATTRIBUTE NAS-Startup-Timestamp 59 date
ATTRIBUTE Ip-Host-Addr 60 string
ATTRIBUTE User-Notify 61 string
ATTRIBUTE User-HeartBeat 62 string
ATTRIBUTE Max-VCs 44 integer
ATTRIBUTE DHCP-Leasetime 45 integer
ATTRIBUTE LAT-Groups 46 string
-ATTRIBUTE RTC-Timestamp 60 integer
+ATTRIBUTE RTC-Timestamp 60 integer # should probably be date?
ATTRIBUTE Circuit-Type 61 integer
ATTRIBUTE Called-Number 90 string
ATTRIBUTE Calling-Number 91 string
ATTRIBUTE Keep-Alive-Timeout 30 integer
ATTRIBUTE TLS-Auth-Type 31 integer
ATTRIBUTE TLS-Pre-Shared-Key 32 string
-ATTRIBUTE CAPWAP-Timestamp 33 integer
+ATTRIBUTE CAPWAP-Timestamp 33 integer # should probably be date?
ATTRIBUTE CAPWAP-WVersion 34 string
ATTRIBUTE CAPWAP-Session-Id 35 octets
ATTRIBUTE CAPWAP-Radio-Id 36 integer
ATTRIBUTE CAPWAP-GPS-Longitude 52 string
ATTRIBUTE CAPWAP-GPS-Altitude 53 string
ATTRIBUTE CAPWAP-GPS-Hdop 54 string
-ATTRIBUTE CAPWAP-GPS-Timestamp 55 string
+ATTRIBUTE CAPWAP-GPS-Timestamp 55 string # should probably be date?
ATTRIBUTE CAPWAP-Hardware-Version 56 string
ATTRIBUTE CAPWAP-Software-Version 57 string
ATTRIBUTE CAPWAP-Boot-Version 58 string
ATTRIBUTE Mobile-Session-ID 0x9885 integer
ATTRIBUTE Mobile-Accounting-Type 0x9886 integer
ATTRIBUTE Mobile-Service-Option 0x9887 integer
-ATTRIBUTE Wallclock-Timestamp 0x9888 integer
+ATTRIBUTE Wallclock-Timestamp 0x9888 integer # should probably be date?
ATTRIBUTE Dvmrp-Initial-Flooding 0x988a integer
ATTRIBUTE Telnet-Options 0x988c integer
ATTRIBUTE CDMA-PktData-Network-ID 0x988d integer