diff --git a/src/controllers/api/getGuildLogController.ts b/src/controllers/api/getGuildLogController.ts
index 47c94b63..67940fde 100644
--- a/src/controllers/api/getGuildLogController.ts
+++ b/src/controllers/api/getGuildLogController.ts
@@ -20,14 +20,14 @@ export const getGuildLogController: RequestHandler = async (req, res) => {
             };
             guild.RoomChanges?.forEach(entry => {
                 log.RoomChanges.push({
-                    dateTime: toMongoDate(entry.dateTime),
+                    dateTime: toMongoDate(entry.dateTime ?? new Date()),
                     entryType: entry.entryType,
                     details: entry.details
                 });
             });
             guild.TechChanges?.forEach(entry => {
                 log.TechChanges.push({
-                    dateTime: toMongoDate(entry.dateTime),
+                    dateTime: toMongoDate(entry.dateTime ?? new Date()),
                     entryType: entry.entryType,
                     details: entry.details
                 });
diff --git a/src/controllers/api/guildTechController.ts b/src/controllers/api/guildTechController.ts
index f9a2e9fb..fab5cf0b 100644
--- a/src/controllers/api/guildTechController.ts
+++ b/src/controllers/api/guildTechController.ts
@@ -216,10 +216,6 @@ export const guildTechController: RequestHandler = async (req, res) => {
         const project = guild.TechProjects!.find(x => x.ItemType == data.RecipeType)!;
         project.State = 0;
         guild.ActiveDojoColorResearch = data.RecipeType;
-        const entry = guild.TechChanges?.find(x => x.details == data.RecipeType);
-        if (entry) {
-            entry.dateTime = new Date();
-        }
         await guild.save();
         res.end();
     } else {
@@ -252,11 +248,11 @@ const setTechLogState = (
         if (entry.entryType == state) {
             return false;
         }
-        entry.dateTime = dateTime ?? new Date();
+        entry.dateTime = dateTime;
         entry.entryType = state;
     } else {
         guild.TechChanges.push({
-            dateTime: dateTime ?? new Date(),
+            dateTime: dateTime,
             entryType: state,
             details: type
         });
diff --git a/src/controllers/api/startDojoRecipeController.ts b/src/controllers/api/startDojoRecipeController.ts
index 04131d65..d2865165 100644
--- a/src/controllers/api/startDojoRecipeController.ts
+++ b/src/controllers/api/startDojoRecipeController.ts
@@ -39,7 +39,6 @@ export const startDojoRecipeController: RequestHandler = async (req, res) => {
 
     guild.RoomChanges ??= [];
     guild.RoomChanges.push({
-        dateTime: new Date(),
         entryType: 2,
         details: request.PlacedComponent.pf,
         componentId: componentId
diff --git a/src/models/guildModel.ts b/src/models/guildModel.ts
index 23d28b36..30057c76 100644
--- a/src/models/guildModel.ts
+++ b/src/models/guildModel.ts
@@ -6,9 +6,10 @@ import {
     ILongMOTD,
     IGuildMemberDatabase,
     IGuildLogEntryNumber,
-    IGuildLogEntryString,
     IGuildRank,
-    IGuildLogRoomChange
+    IGuildLogRoomChange,
+    IGuildLogEntryRoster,
+    IGuildLogEntryContributable
 } from "@/src/types/guildTypes";
 import { Document, Model, model, Schema, Types } from "mongoose";
 import { fusionTreasuresSchema, typeCountSchema } from "./inventoryModels/inventoryModel";
@@ -108,7 +109,17 @@ const defaultRanks: IGuildRank[] = [
     }
 ];
 
-const guildLogEntryStringSchema = new Schema<IGuildLogEntryString>(
+const guildLogRoomChangeSchema = new Schema<IGuildLogRoomChange>(
+    {
+        dateTime: Date,
+        entryType: Number,
+        details: String,
+        componentId: Types.ObjectId
+    },
+    { _id: false }
+);
+
+const guildLogEntryContributableSchema = new Schema<IGuildLogEntryContributable>(
     {
         dateTime: Date,
         entryType: Number,
@@ -117,12 +128,11 @@ const guildLogEntryStringSchema = new Schema<IGuildLogEntryString>(
     { _id: false }
 );
 
-const guildLogRoomChangeSchema = new Schema<IGuildLogRoomChange>(
+const guildLogEntryRosterSchema = new Schema<IGuildLogEntryRoster>(
     {
         dateTime: Date,
         entryType: Number,
-        details: String,
-        componentId: Types.ObjectId
+        details: String
     },
     { _id: false }
 );
@@ -161,8 +171,8 @@ const guildSchema = new Schema<IGuildDatabase>(
         CeremonyResetDate: Date,
         CeremonyEndo: Number,
         RoomChanges: { type: [guildLogRoomChangeSchema], default: undefined },
-        TechChanges: { type: [guildLogEntryStringSchema], default: undefined },
-        RosterActivity: { type: [guildLogEntryStringSchema], default: undefined },
+        TechChanges: { type: [guildLogEntryContributableSchema], default: undefined },
+        RosterActivity: { type: [guildLogEntryRosterSchema], default: undefined },
         ClassChanges: { type: [guildLogEntryNumberSchema], default: undefined }
     },
     { id: false }
diff --git a/src/types/guildTypes.ts b/src/types/guildTypes.ts
index ee10656b..f563e281 100644
--- a/src/types/guildTypes.ts
+++ b/src/types/guildTypes.ts
@@ -50,8 +50,8 @@ export interface IGuildDatabase {
     CeremonyResetDate?: Date;
 
     RoomChanges?: IGuildLogRoomChange[];
-    TechChanges?: IGuildLogEntryString[];
-    RosterActivity?: IGuildLogEntryString[];
+    TechChanges?: IGuildLogEntryContributable[];
+    RosterActivity?: IGuildLogEntryRoster[];
     ClassChanges?: IGuildLogEntryNumber[];
 }
 
@@ -190,16 +190,22 @@ export interface ITechProjectDatabase extends Omit<ITechProjectClient, "Completi
     CompletionDate?: Date;
 }
 
-export interface IGuildLogEntryString {
-    dateTime: Date;
+export interface IGuildLogEntryContributable {
+    dateTime?: Date;
     entryType: number;
     details: string;
 }
 
-export interface IGuildLogRoomChange extends IGuildLogEntryString {
+export interface IGuildLogRoomChange extends IGuildLogEntryContributable {
     componentId: Types.ObjectId;
 }
 
+export interface IGuildLogEntryRoster {
+    dateTime: Date;
+    entryType: number;
+    details: string;
+}
+
 export interface IGuildLogEntryNumber {
     dateTime: Date;
     entryType: number;